IRMover: Merge flags LinkModuleInlineAsm and IsPerformingImport.

Currently these flags are always the inverse of each other, so there is
no need to keep them separate.

Differential Revision: https://reviews.llvm.org/D29471

llvm-svn: 294016
diff --git a/llvm/lib/Transforms/IPO/FunctionImport.cpp b/llvm/lib/Transforms/IPO/FunctionImport.cpp
index 6f01a2c..76cfbf8 100644
--- a/llvm/lib/Transforms/IPO/FunctionImport.cpp
+++ b/llvm/lib/Transforms/IPO/FunctionImport.cpp
@@ -774,7 +774,7 @@
 
     if (Mover.move(std::move(SrcModule), GlobalsToImport.getArrayRef(),
                    [](GlobalValue &, IRMover::ValueAdder) {},
-                   /*LinkModuleInlineAsm=*/false, /*IsPerformingImport=*/true))
+                   /*IsPerformingImport=*/true))
       report_fatal_error("Function Import: link error");
 
     ImportedCount += GlobalsToImport.size();