[clang][Driver] Add -fintegrate-as to debug-pass-structure test

[jsji]

Summary

CGProfilePass is not always on, it will be disabled when using
non-intergrated assemblers.

// Only enable CGProfilePass when using integrated assembler, since
// non-integrated assemblers don't recognize .cgprofile section.
PMBuilder.CallGraphProfile = !CodeGenOpts.DisableIntegratedAS;

Add -fintegrate-as to make sure the output don't rely on the platform default.

[evgeny777]

LGTM

clang/test/Driver/debug-pass-structure.c

 // Test that we print pass structure with new and legacy PM.
-// RUN: %clang -fexperimental-new-pass-manager -fdebug-pass-structure -O3 -S -emit-llvm %s -o /dev/null 2>&1 | FileCheck %s --check-prefix=NEWPM
+// RUN: %clang -fexperimental-new-pass-manager -fdebug-pass-structure -fintegrated-as -O3 -S -emit-llvm %s -o /dev/null 2>&1 | FileCheck %s --check-prefix=NEWPM
 // RUN: %clang -flegacy-pass-manager -fdebug-pass-structure -O0 -S -emit-llvm %s -o /dev/null 2>&1 | FileCheck %s --check-prefix=LEGACYPM
 // REQUIRES: asserts
 
 // NEWPM: Annotation2MetadataPass on [module]
 // NEWPM-NEXT: ForceFunctionAttrsPass on [module]
 // NEWPM-NEXT: InferFunctionAttrsPass on [module]
 // NEWPM-NEXT:   InnerAnalysisManagerProxy<{{.*}}> analysis on [module]
 // NEWPM-NEXT: ModuleToFunctionPassAdaptor on [module]

 // NEWPM-NEXT:     InnerAnalysisManagerProxy<{{.*}}> analysis on [module]
 // NEWPM-NEXT:       LazyCallGraphAnalysis analysis on [module]
 // NEWPM-NEXT: GlobalOptPass on [module]
 // NEWPM-NEXT: GlobalDCEPass on [module]
 // NEWPM-NEXT: EliminateAvailableExternallyPass on [module]
 // NEWPM-NEXT: ReversePostOrderFunctionAttrsPass on [module]
 // NEWPM-NEXT: RequireAnalysisPass<{{.*}}> on [module]
 // NEWPM-NEXT: ModuleToFunctionPassAdaptor on [module]
+// CGProfilePass is disabled with non-integrated assemblers
 // NEWPM-NEXT: CGProfilePass on [module]
 // NEWPM-NEXT: GlobalDCEPass on [module]
 // NEWPM-NEXT: ConstantMergePass on [module]
 // NEWPM-NEXT: RelLookupTableConverterPass on [module]
 // NEWPM-NEXT: ModuleToFunctionPassAdaptor on [module]
 // NEWPM-NEXT: PrintModulePass on [module]
 
 // LEGACYPM:      Pass Arguments: