[clang][deps] Do check for relocated modules

clang/include/clang/Driver/Options.td

@@ -3353,7 +3353,7 @@ defm implicit_modules : BoolFOption<"implicit-modules",
   NegFlag<SetFalse, [], [ClangOption, CC1Option]>,
   PosFlag<SetTrue>, BothFlags<
           [NoXarchOption], [ClangOption, CLOption]>>;
-def fno_modules_check_relocated : Joined<["-"], "fno-modules-check-relocated">,
+def fno_modules_check_relocated : Flag<["-"], "fno-modules-check-relocated">,
   Group<f_Group>, Visibility<[ClangOption, CC1Option]>,
   HelpText<"Skip checks for relocated modules when loading PCM files">,
   MarshallingInfoNegativeFlag<PreprocessorOpts<"ModulesCheckRelocated">>;

clang/lib/Tooling/DependencyScanning/DependencyScanningWorker.cpp

@@ -427,9 +427,6 @@ class DependencyScanningAction : public tooling::ToolAction {
     ScanInstance.getHeaderSearchOpts().ModulesSkipPragmaDiagnosticMappings =
         true;
 
-    // Avoid some checks and module map parsing when loading PCM files.
-    ScanInstance.getPreprocessorOpts().ModulesCheckRelocated = false;
-
     std::unique_ptr<FrontendAction> Action;
 
     if (Service.getFormat() == ScanningOutputFormat::P1689)

clang/test/ClangScanDeps/modules-relocated-module-map.c

@@ -0,0 +1,36 @@
+// RUN: rm -rf %t
+// RUN: split-file %s %t
+
+// RUN: mkdir %t/frameworks1
+
+// RUN: clang-scan-deps -format experimental-full -- \
+// RUN:   %clang -fmodules -fmodules-cache-path=%t/cache \
+// RUN:   -F %t/frameworks1 -F %t/frameworks2 \
+// RUN:   -c %t/tu1.m -o %t/tu1.o
+
+// RUN: cp -r %t/frameworks2/A.framework %t/frameworks1
+
+// RUN: clang-scan-deps -format experimental-full -- \
+// RUN:   %clang -fmodules -fmodules-cache-path=%t/cache \
+// RUN:   -F %t/frameworks1 -F %t/frameworks2 \
+// RUN:   -c %t/tu2.m -o %t/tu2.o
+
+//--- frameworks2/A.framework/Modules/module.modulemap
+framework module A { header "A.h" }
+//--- frameworks2/A.framework/Headers/A.h
+#define MACRO_A 1
+
+//--- frameworks2/B.framework/Modules/module.modulemap
+framework module B { header "B.h" }
+//--- frameworks2/B.framework/Headers/B.h
+#include <A/A.h>
+
+//--- tu1.m
+#include <B/B.h>
+
+//--- tu2.m
+#include <A/A.h>
+#include <B/B.h>
+
+#if MACRO_A == 3
+#endif