fix(ivy): use any for generic context checks when !strictTemplates (#34649)

Previously, the template type-checker would always construct a generic
template context type with correct bounds, even when strictTemplates was
disabled. This meant that type-checking of expressions involving that type
was stricter than View Engine.

This commit introduces a 'strictContextGenerics' flag which behaves
similarly to other 'strictTemplates' flags, and switches the inference of
generic type parameters on the component context based on the value of this
flag.

PR Close #34649

packages/compiler-cli/src/ngtsc/program.ts

@@ -504,6 +504,7 @@ export class NgtscProgram implements api.Program {
         // Pipes are checked in View Engine so there is no strictness flag.
         checkTypeOfPipes: true,
         strictSafeNavigationTypes: strictTemplates,
+        useContextGenericType: strictTemplates,
       };
     } else {
       typeCheckingConfig = {
@@ -521,6 +522,7 @@ export class NgtscProgram implements api.Program {
         checkTypeOfNonDomReferences: false,
         checkTypeOfPipes: false,
         strictSafeNavigationTypes: false,
+        useContextGenericType: false,
       };
     }
 
@@ -549,6 +551,9 @@ export class NgtscProgram implements api.Program {
     if (this.options.strictAttributeTypes !== undefined) {
       typeCheckingConfig.checkTypeOfAttributes = this.options.strictAttributeTypes;
     }
+    if (this.options.strictContextGenerics !== undefined) {
+      typeCheckingConfig.useContextGenericType = this.options.strictContextGenerics;
+    }
 
     // Execute the typeCheck phase of each decorator in the program.
     const prepSpan = this.perfRecorder.start('typeCheckPrep');