refactor(compiler): bump metadata version to 4 (#19338)

Also adds auto upgrade from lower version based
on the .d.ts file (e.g. from version 3 to 4).

This is needed as we are now also capturing type aliases
in metadata files (and we rely on this),
see 6e3498ca8e.

packages/compiler/test/aot/static_reflector_spec.ts

@@ -7,7 +7,7 @@
  */
 
 import {StaticReflector, StaticSymbol, StaticSymbolCache, StaticSymbolResolver, StaticSymbolResolverHost, core as compilerCore} from '@angular/compiler';
-import {CollectorOptions} from '@angular/compiler-cli/src/metadata/index';
+import {CollectorOptions, METADATA_VERSION} from '@angular/compiler-cli';
 
 import {MockStaticSymbolResolverHost, MockSummaryResolver} from './static_symbol_resolver_spec';
 
@@ -883,7 +883,7 @@ describe('StaticReflector', () => {
 const DEFAULT_TEST_DATA: {[key: string]: any} = {
   '/tmp/@angular/common/src/forms-deprecated/directives.d.ts': [{
     '__symbolic': 'module',
-    'version': 3,
+    'version': METADATA_VERSION,
     'metadata': {
       'FORM_DIRECTIVES': [{
         '__symbolic': 'reference',
@@ -894,7 +894,7 @@ const DEFAULT_TEST_DATA: {[key: string]: any} = {
   }],
   '/tmp/@angular/common/src/directives/ng_for.d.ts': {
     '__symbolic': 'module',
-    'version': 3,
+    'version': METADATA_VERSION,
     'metadata': {
       'NgFor': {
         '__symbolic': 'class',
@@ -924,19 +924,19 @@ const DEFAULT_TEST_DATA: {[key: string]: any} = {
     }
   },
   '/tmp/@angular/core/src/linker/view_container_ref.d.ts':
-      {version: 3, 'metadata': {'ViewContainerRef': {'__symbolic': 'class'}}},
+      {version: METADATA_VERSION, 'metadata': {'ViewContainerRef': {'__symbolic': 'class'}}},
   '/tmp/@angular/core/src/linker/template_ref.d.ts': {
-    version: 3,
+    version: METADATA_VERSION,
     'module': './template_ref',
     'metadata': {'TemplateRef': {'__symbolic': 'class'}}
   },
   '/tmp/@angular/core/src/change_detection/differs/iterable_differs.d.ts':
-      {version: 3, 'metadata': {'IterableDiffers': {'__symbolic': 'class'}}},
+      {version: METADATA_VERSION, 'metadata': {'IterableDiffers': {'__symbolic': 'class'}}},
   '/tmp/@angular/core/src/change_detection/change_detector_ref.d.ts':
-      {version: 3, 'metadata': {'ChangeDetectorRef': {'__symbolic': 'class'}}},
+      {version: METADATA_VERSION, 'metadata': {'ChangeDetectorRef': {'__symbolic': 'class'}}},
   '/tmp/src/app/hero-detail.component.d.ts': {
     '__symbolic': 'module',
-    'version': 3,
+    'version': METADATA_VERSION,
     'metadata': {
       'HeroDetailComponent': {
         '__symbolic': 'class',
@@ -971,10 +971,10 @@ const DEFAULT_TEST_DATA: {[key: string]: any} = {
       }
     }
   },
-  '/src/extern.d.ts': {'__symbolic': 'module', 'version': 3, metadata: {s: 's'}},
+  '/src/extern.d.ts': {'__symbolic': 'module', 'version': METADATA_VERSION, metadata: {s: 's'}},
   '/tmp/src/error-reporting.d.ts': {
     __symbolic: 'module',
-    version: 3,
+    version: METADATA_VERSION,
     metadata: {
       SomeClass: {
         __symbolic: 'class',
@@ -994,7 +994,7 @@ const DEFAULT_TEST_DATA: {[key: string]: any} = {
   },
   '/tmp/src/error-references.d.ts': {
     __symbolic: 'module',
-    version: 3,
+    version: METADATA_VERSION,
     metadata: {
       Link1: {__symbolic: 'reference', module: 'src/error-references', name: 'Link2'},
       Link2: {__symbolic: 'reference', module: 'src/error-references', name: 'ErrorSym'},
@@ -1004,7 +1004,7 @@ const DEFAULT_TEST_DATA: {[key: string]: any} = {
   },
   '/tmp/src/function-declaration.d.ts': {
     __symbolic: 'module',
-    version: 3,
+    version: METADATA_VERSION,
     metadata: {
       one: {
         __symbolic: 'function',
@@ -1031,7 +1031,7 @@ const DEFAULT_TEST_DATA: {[key: string]: any} = {
   },
   '/tmp/src/function-reference.ts': {
     __symbolic: 'module',
-    version: 3,
+    version: METADATA_VERSION,
     metadata: {
       one: {
         __symbolic: 'call',
@@ -1058,7 +1058,7 @@ const DEFAULT_TEST_DATA: {[key: string]: any} = {
   },
   '/tmp/src/function-recursive.d.ts': {
     __symbolic: 'modules',
-    version: 3,
+    version: METADATA_VERSION,
     metadata: {
       recursive: {
         __symbolic: 'function',
@@ -1103,7 +1103,7 @@ const DEFAULT_TEST_DATA: {[key: string]: any} = {
   },
   '/tmp/src/spread.ts': {
     __symbolic: 'module',
-    version: 3,
+    version: METADATA_VERSION,
     metadata: {spread: [0, {__symbolic: 'spread', expression: [1, 2, 3, 4]}, 5]}
   },
   '/tmp/src/custom-decorator.ts': `

packages/compiler/test/aot/static_symbol_resolver_spec.ts

@@ -7,11 +7,12 @@
  */
 
 import {StaticSymbol, StaticSymbolCache, StaticSymbolResolver, StaticSymbolResolverHost, Summary, SummaryResolver} from '@angular/compiler';
+import {CollectorOptions, METADATA_VERSION} from '@angular/compiler-cli';
 import {MetadataCollector} from '@angular/compiler-cli/src/metadata/collector';
-import {CollectorOptions} from '@angular/compiler-cli/src/metadata/index';
 import * as ts from 'typescript';
 
 
+
 // This matches .ts files but not .d.ts files.
 const TS_EXT = /(^.|(?!\.d)..)\.ts$/;
 
@@ -38,7 +39,7 @@ describe('StaticSymbolResolver', () => {
         () => symbolResolver.resolveSymbol(
             symbolResolver.getSymbolByModule('src/version-error', 'e')))
         .toThrow(new Error(
-            'Metadata version mismatch for module /tmp/src/version-error.d.ts, found version 100, expected 3'));
+            `Metadata version mismatch for module /tmp/src/version-error.d.ts, found version 100, expected ${METADATA_VERSION}`));
   });
 
   it('should throw an exception for version 2 metadata', () => {
@@ -155,14 +156,14 @@ describe('StaticSymbolResolver', () => {
           {
             '/test.d.ts': [{
               '__symbolic': 'module',
-              'version': 3,
+              'version': METADATA_VERSION,
               'metadata': {
                 'a': {'__symbolic': 'reference', 'name': 'b', 'module': './test2'},
               }
             }],
             '/test2.d.ts': [{
               '__symbolic': 'module',
-              'version': 3,
+              'version': METADATA_VERSION,
               'metadata': {
                 'b': {'__symbolic': 'reference', 'name': 'c', 'module': './test3'},
               }
@@ -299,7 +300,7 @@ describe('StaticSymbolResolver', () => {
     init({
       '/test.d.ts': [{
         '__symbolic': 'module',
-        'version': 3,
+        'version': METADATA_VERSION,
         'metadata': {
           'AParam': {__symbolic: 'class'},
           'AClass': {
@@ -504,7 +505,7 @@ const DEFAULT_TEST_DATA: {[key: string]: any} = {
   '/tmp/src/version-2-error.d.ts': {'__symbolic': 'module', 'version': 2, metadata: {e: 's'}},
   '/tmp/src/reexport/reexport.d.ts': {
     __symbolic: 'module',
-    version: 3,
+    version: METADATA_VERSION,
     metadata: {
       Six: {__symbolic: 'class'},
     },
@@ -515,7 +516,7 @@ const DEFAULT_TEST_DATA: {[key: string]: any} = {
   },
   '/tmp/src/reexport/src/origin1.d.ts': {
     __symbolic: 'module',
-    version: 3,
+    version: METADATA_VERSION,
     metadata: {
       One: {__symbolic: 'class'},
       Two: {__symbolic: 'class'},
@@ -525,26 +526,26 @@ const DEFAULT_TEST_DATA: {[key: string]: any} = {
   },
   '/tmp/src/reexport/src/origin5.d.ts': {
     __symbolic: 'module',
-    version: 3,
+    version: METADATA_VERSION,
     metadata: {
       Five: {__symbolic: 'class'},
     },
   },
   '/tmp/src/reexport/src/origin30.d.ts': {
     __symbolic: 'module',
-    version: 3,
+    version: METADATA_VERSION,
     metadata: {
       Thirty: {__symbolic: 'class'},
     },
   },
   '/tmp/src/reexport/src/originNone.d.ts': {
     __symbolic: 'module',
-    version: 3,
+    version: METADATA_VERSION,
     metadata: {},
   },
   '/tmp/src/reexport/src/reexport2.d.ts': {
     __symbolic: 'module',
-    version: 3,
+    version: METADATA_VERSION,
     metadata: {},
     exports: [{from: './originNone'}, {from: './origin30'}]
   }

packages/compiler/test/aot/summary_serializer_spec.ts

@@ -7,6 +7,7 @@
  */
 
 import {AotSummaryResolver, AotSummaryResolverHost, CompileSummaryKind, StaticSymbol, StaticSymbolCache, StaticSymbolResolver, StaticSymbolResolverHost} from '@angular/compiler';
+import {METADATA_VERSION} from '@angular/compiler-cli';
 import {deserializeSummaries, serializeSummaries} from '@angular/compiler/src/aot/summary_serializer';
 import {summaryFileName} from '@angular/compiler/src/aot/util';
 
@@ -242,7 +243,7 @@ export function main() {
           export var local = 'a';
         `,
                '/tmp/non_summary.d.ts':
-                   {__symbolic: 'module', version: 3, metadata: {'external': 'b'}}
+                   {__symbolic: 'module', version: METADATA_VERSION, metadata: {'external': 'b'}}
              });
          const serialized = serializeSummaries(
              'someFile.ts', createMockOutputContext(), summaryResolver, symbolResolver, [{