More PCH -> AST renaming.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111472 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Frontend/FrontendAction.cpp b/lib/Frontend/FrontendAction.cpp
index 906fd9a..531213b 100644
--- a/lib/Frontend/FrontendAction.cpp
+++ b/lib/Frontend/FrontendAction.cpp
@@ -51,7 +51,7 @@
 
     llvm::IntrusiveRefCntPtr<Diagnostic> Diags(&CI.getDiagnostics());
     std::string Error;
-    ASTUnit *AST = ASTUnit::LoadFromPCHFile(Filename, Diags);
+    ASTUnit *AST = ASTUnit::LoadFromASTFile(Filename, Diags);
     if (!AST)
       goto failure;