cmMakefile: Make the public ReadListFile method take one param.

Make the existing method a private overload. All external callers
invoke the method with only one argument.

Source/cmMakefile.cxx

@@ -610,12 +610,14 @@ bool cmMakefile::ReadDependentFile(const char* listfile, bool noPolicyScope)
 {
   this->AddDefinition("CMAKE_PARENT_LIST_FILE",
                       this->GetDefinition("CMAKE_CURRENT_LIST_FILE"));
-  return this->ReadListFile(listfile, noPolicyScope);
+  return this->ReadListFile(listfile, noPolicyScope, false);
+}
+
+bool cmMakefile::ReadListFile(const char* listfile)
+{
+  return this->ReadListFile(listfile, true, false);
 }
 
-//----------------------------------------------------------------------------
-// Parse the given CMakeLists.txt file executing all commands
-//
 bool cmMakefile::ReadListFile(const char* listfile,
                               bool noPolicyScope,
                               bool requireProjectCommand)

Source/cmMakefile.h

@@ -84,12 +84,7 @@ public:
    */
   ~cmMakefile();
 
-  /**
-   * Read and parse a CMakeLists.txt file.
-   */
-  bool ReadListFile(const char* listfile,
-                    bool noPolicyScope = true,
-                    bool requireProjectCommand = false);
+  bool ReadListFile(const char* listfile);
 
   bool ReadDependentFile(const char* listfile, bool noPolicyScope = true);
 
@@ -902,6 +897,10 @@ private:
 
   cmState::Snapshot StateSnapshot;
 
+  bool ReadListFile(const char* listfile,
+                    bool noPolicyScope,
+                    bool requireProjectCommand);
+
   bool ReadListFileInternal(const char* filenametoread,
                             bool noPolicyScope,
                             bool requireProjectCommand);