Refactor directed test infrastructue.

- Add hierarchy.  Tests now live in directories, each with its own
  CMakeFiles.txt.  Reduces merge conflicts.
- Change make_hip_executable -> build_hip_executable.
- Refresh docs.
- Enable some tests that were previously built but not run.

Change-Id: I8c5de3c954400bf233904282b8b42861a2b7c536

tests/src/runtimeApi/memory/hipMemoryAllocate.cpp

@@ -0,0 +1,50 @@
+/*
+Copyright (c) 2015-2016 Advanced Micro Devices, Inc. All rights reserved.
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANNTY OF ANY KIND, EXPRESS OR
+IMPLIED, INNCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANNY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER INN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR INN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+*/
+#include"test_common.h"
+
+#define SIZE 1024*1024*256
+
+int main(){
+    float *Ad, *B, *Bd, *Bm, *C, *Cd;
+    B = (float*)malloc(SIZE);
+    hipMalloc((void**)&Ad, SIZE);
+    hipHostMalloc((void**)&B, SIZE);
+    hipHostMalloc((void**)&Bd, SIZE, hipHostMallocDefault);
+    hipHostMalloc((void**)&Bm, SIZE, hipHostMallocMapped);
+    hipHostMalloc((void**)&C, SIZE, hipHostMallocMapped);
+
+    hipHostGetDevicePointer((void**)&Cd, C, 0/*flags*/);
+
+    HIPCHECK_API(hipFree(Ad) ,  hipSuccess);
+    HIPCHECK_API(hipHostFree(Ad) , hipErrorInvalidValue);
+
+    HIPCHECK_API(hipFree(B)  , hipErrorInvalidDevicePointer); // try to hipFree on malloced memory
+    HIPCHECK_API(hipFree(Bd) , hipErrorInvalidDevicePointer);
+    HIPCHECK_API(hipFree(Bm) , hipErrorInvalidDevicePointer);
+    HIPCHECK_API(hipHostFree(Bd) , hipSuccess);
+    HIPCHECK_API(hipHostFree(Bm) , hipSuccess);
+
+    HIPCHECK_API(hipFree(C) , hipErrorInvalidDevicePointer);
+    HIPCHECK_API(hipHostFree(C) , hipSuccess);
+
+
+    HIPCHECK_API(hipFree(NULL) , hipSuccess);
+    HIPCHECK_API(hipHostFree(NULL) , hipSuccess);
+    passed();
+}