Index: cfe/trunk/lib/Format/Format.cpp
===================================================================
--- cfe/trunk/lib/Format/Format.cpp
+++ cfe/trunk/lib/Format/Format.cpp
@@ -844,9 +844,10 @@
               Env.getSourceManager(), Start, Length, ReplacementText));
           // FIXME: handle error. For now, print error message and skip the
           // replacement for release version.
-          if (Err)
+          if (Err) {
             llvm::errs() << llvm::toString(std::move(Err)) << "\n";
-          assert(!Err);
+            assert(false);
+          }
         };
         Replace(Start, 1, IsSingle ? "'" : "\"");
         Replace(FormatTok->Tok.getEndLoc().getLocWithOffset(-1), 1,
@@ -1193,9 +1194,10 @@
           Fixes.add(tooling::Replacement(Env.getSourceManager(), SR, ""));
       // FIXME: better error handling. for now just print error message and skip
       // for the release version.
-      if (Err)
+      if (Err) {
         llvm::errs() << llvm::toString(std::move(Err)) << "\n";
-      assert(!Err && "Fixes must not conflict!");
+        assert(false && "Fixes must not conflict!");
+      }
       Idx = End + 1;
     }
 
@@ -1327,9 +1329,10 @@
       FileName, Includes.front().Offset, IncludesBlockSize, result));
   // FIXME: better error handling. For now, just skip the replacement for the
   // release version.
-  if (Err)
+  if (Err) {
     llvm::errs() << llvm::toString(std::move(Err)) << "\n";
-  assert(!Err);
+    assert(false);
+  }
 }
 
 namespace {
Index: cfe/trunk/lib/Format/SortJavaScriptImports.cpp
===================================================================
--- cfe/trunk/lib/Format/SortJavaScriptImports.cpp
+++ cfe/trunk/lib/Format/SortJavaScriptImports.cpp
@@ -197,9 +197,10 @@
         ReferencesText));
     // FIXME: better error handling. For now, just print error message and skip
     // the replacement for the release version.
-    if (Err)
+    if (Err) {
       llvm::errs() << llvm::toString(std::move(Err)) << "\n";
-    assert(!Err);
+      assert(false);
+    }
 
     return Result;
   }
Index: cfe/trunk/lib/Format/WhitespaceManager.cpp
===================================================================
--- cfe/trunk/lib/Format/WhitespaceManager.cpp
+++ cfe/trunk/lib/Format/WhitespaceManager.cpp
@@ -501,9 +501,10 @@
       SourceMgr, CharSourceRange::getCharRange(Range), Text));
   // FIXME: better error handling. For now, just print an error message in the
   // release version.
-  if (Err)
+  if (Err) {
     llvm::errs() << llvm::toString(std::move(Err)) << "\n";
-  assert(!Err);
+    assert(false);
+  }
 }
 
 void WhitespaceManager::appendNewlineText(std::string &Text,
Index: cfe/trunk/lib/Lex/ModuleMap.cpp
===================================================================
--- cfe/trunk/lib/Lex/ModuleMap.cpp
+++ cfe/trunk/lib/Lex/ModuleMap.cpp
@@ -827,7 +827,7 @@
       return;
 
   HeaderList.push_back(KH);
-  Mod->Headers[headerRoleToKind(Role)].push_back(std::move(Header));
+  Mod->Headers[headerRoleToKind(Role)].push_back(Header);
 
   bool isCompilingModuleHeader =
       LangOpts.isCompilingModule() && Mod->getTopLevelModule() == SourceModule;
Index: cfe/trunk/lib/Tooling/RefactoringCallbacks.cpp
===================================================================
--- cfe/trunk/lib/Tooling/RefactoringCallbacks.cpp
+++ cfe/trunk/lib/Tooling/RefactoringCallbacks.cpp
@@ -45,9 +45,10 @@
         CharSourceRange::getTokenRange(FromMatch->getSourceRange()), ToText));
     // FIXME: better error handling. For now, just print error message in the
     // release version.
-    if (Err)
+    if (Err) {
       llvm::errs() << llvm::toString(std::move(Err)) << "\n";
-    assert(!Err);
+      assert(false);
+    }
   }
 }
 
@@ -63,9 +64,10 @@
         replaceStmtWithStmt(*Result.SourceManager, *FromMatch, *ToMatch));
     // FIXME: better error handling. For now, just print error message in the
     // release version.
-    if (Err)
+    if (Err) {
       llvm::errs() << llvm::toString(std::move(Err)) << "\n";
-    assert(!Err);
+      assert(false);
+    }
   }
 }
 
@@ -82,9 +84,10 @@
           Replace.add(replaceStmtWithStmt(*Result.SourceManager, *Node, *Body));
       // FIXME: better error handling. For now, just print error message in the
       // release version.
-      if (Err)
+      if (Err) {
         llvm::errs() << llvm::toString(std::move(Err)) << "\n";
-      assert(!Err);
+        assert(false);
+      }
     } else if (!PickTrueBranch) {
       // If we want to use the 'else'-branch, but it doesn't exist, delete
       // the whole 'if'.
@@ -92,9 +95,10 @@
           Replace.add(replaceStmtWithText(*Result.SourceManager, *Node, ""));
       // FIXME: better error handling. For now, just print error message in the
       // release version.
-      if (Err)
+      if (Err) {
         llvm::errs() << llvm::toString(std::move(Err)) << "\n";
-      assert(!Err);
+        assert(false);
+      }
     }
   }
 }