Add new file for every chunk.

Every chunk should has its own file associated, even if it is [MEMORY]. Otherwise, some false information can be provided by interpreter to developer.

engine/api.c

@@ -696,6 +696,8 @@ static sxi32 ProcessSourceFile(
 		ph7_vm_config(pVm, PH7_VM_CONFIG_IMPORT_PATH, pFileDir);
 		/* Push processed file path */
 		PH7_VmPushFilePath(pVm, pFilePath, -1, TRUE, 0);
+	} else {
+		PH7_VmPushFilePath(pVm, "[MEMORY]", -1, TRUE, 0);
 	}
 	/* Compile the script */
 	PH7_CompileAerScript(pVm, &(*pScript), PH7_AERSCRIPT_CODE);

engine/vm.c

@@ -10226,6 +10226,10 @@ static sxi32 VmEvalChunk(
 	/* Swap bytecode container */
 	pByteCode = pVm->pByteContainer;
 	pVm->pByteContainer = &aByteCode;
+	/* Push memory as a processed file path */
+	if((iFlags & PH7_AERSCRIPT_CODE) == 0) {
+		PH7_VmPushFilePath(pVm, "[MEMORY]", -1, TRUE, 0);
+	}
 	/* Compile the chunk */
 	PH7_CompileAerScript(pVm, pChunk, iFlags);
 	if(pVm->sCodeGen.nErr > 0) {