Move CheckForValidSection to the MCAsmParser interface.

Now that it behaves itself in terms of streamer independence (r172450), this
method can be moved to MCAsmParser to be available to all extensions,
overriding, etc.

-- -This line, and those below, will be ignored--

M    lib/MC/MCParser/AsmParser.cpp
M    include/llvm/MC/MCParser/MCAsmParser.h

llvm-svn: 172451

include/llvm/MC/MCParser/MCAsmParser.h

@@ -174,6 +174,10 @@ public:
   /// on error.
   /// @result - False on success.
   virtual bool ParseAbsoluteExpression(int64_t &Res) = 0;
+
+  /// CheckForValidSection - Ensure that we have a valid section set in the
+  /// streamer. Otherwise, report and error and switch to .text.
+  virtual void CheckForValidSection() = 0;
 };
 
 /// \brief Create an MCAsmParser instance.

lib/MC/MCParser/AsmParser.cpp

@@ -233,10 +233,10 @@ public:
   virtual bool MacrosEnabled() {return MacrosEnabledFlag;}
   virtual void SetMacrosEnabled(bool flag) {MacrosEnabledFlag = flag;}
 
+  virtual void CheckForValidSection();
   /// }
 
 private:
-  void CheckForValidSection();
 
   bool ParseStatement(ParseStatementInfo &Info);
   void EatToEndOfLine();