Minor compatibility fixes for google3-import. (#1198)

Author: jnthntatum

cel/folding.go

@@ -38,7 +38,7 @@ func MaxConstantFoldIterations(limit int) ConstantFoldingOption {
 	}
 }
 
-// Adds an Activation which provides known values for the folding evaluator
+// FoldKnownValues adds an Activation which provides known values for the folding evaluator
 //
 // Any values the activation provides will be used by the constant folder and turned into
 // literals in the AST.

cel/folding_test.go

@@ -332,7 +332,9 @@ func TestConstantFoldingOptimizer(t *testing.T) {
 		EnableMacroCallTracking(),
 		Types(&proto3pb.TestAllTypes{}),
 		Variable("x", DynType),
-		Constant("c", IntType, types.Int(proto3pb.ImportedGlobalEnum_IMPORT_BAZ)),
+		// work around different package convention in piper vs github.
+		// google.expr.proto3.test.ImportedGlobalEnum.IMPORT_BAZ
+		Constant("c", IntType, types.Int(2)),
 	)
 	if err != nil {
 		t.Fatalf("NewEnv() failed: %v", err)