cmTarget: Evaluate CMP0026 and CMP0051 in calling context

These policies should be checked at the call site that tries to access
the LOCATION or SOURCES property, not the directory scope containing the
target.  Thread the caller context through cmTarget::GetProperty to use
for checking the policy setting and emitting a diagnostic with proper
backtrace.

Extend the RunCMake.CMP0026 and RunCMake.CMP0051 tests with
cross-directory cases.

1 files changed, 2 insertions, 1 deletions

diff --git a/Source/cmTarget.h b/Source/cmTarget.h
index 22462b9..bee6b34 100644
--- a/Source/cmTarget.h
+++ b/Source/cmTarget.h
@@ -231,6 +231,7 @@ public:
   void AppendProperty(const std::string&  prop, const char* value,
           bool asString=false);
   const char *GetProperty(const std::string& prop) const;
+  const char *GetProperty(const std::string& prop, cmMakefile* context) const;
   bool GetPropertyAsBool(const std::string& prop) const;
   void CheckProperty(const std::string& prop, cmMakefile* context) const;
 
@@ -587,7 +588,7 @@ public:
                             const std::string &compatibilityType) const;
 
 private:
-  bool HandleLocationPropertyPolicy() const;
+  bool HandleLocationPropertyPolicy(cmMakefile* context) const;
 
   // The set of include directories that are marked as system include
   // directories.