[clang][deps] Upstream tests for libclang API

Original author: Alex Lorenz <[email protected]>

(cherry-picked from commit 1582bf1)

Author: jansvoboda11

clang/test/ClangScanDeps/error-c-api.cpp

@@ -0,0 +1,6 @@
+// RUN: not c-index-test core -scan-deps %S -- clang_tool %s -I %S/Inputs 2>&1 | FileCheck %s
+
+#include "missing.h"
+
+// CHECK: error: failed to get dependencies
+// CHECK-NEXT: 'missing.h' file not found

clang/test/ClangScanDeps/flags-c-api.cpp

@@ -0,0 +1,7 @@
+// RUN: c-index-test core -scan-deps %S -- clang_tool %s -I %S/Inputs | FileCheck %s
+
+#include "header.h"
+
+// CHECK: file-deps:
+// CHECK-NEXT: flags-c-api.cpp
+// CHECK-NEXT: Inputs/header.h

clang/test/ClangScanDeps/mllvm-double-option-error-c-api.c

@@ -0,0 +1,9 @@
+// RUN: c-index-test core -scan-deps %S -- clang_tool -Dmz -mllvm -asan-instrumentation-with-call-threshold=0 -mllvm -asan-instrumentation-with-call-threshold=0 %s -I %S/Inputs | FileCheck %s
+
+#ifdef mz
+#include "header.h"
+#endif
+
+// CHECK: file-deps:
+// CHECK-NEXT: mllvm-double-option-error-c-api.c
+// CHECK-NEXT: Inputs/header.h

clang/test/ClangScanDeps/simple-c-api.cpp

@@ -0,0 +1,7 @@
+// RUN: c-index-test core -scan-deps %S -- clang_tool %s -I %S/Inputs | FileCheck %s
+
+#include "header.h"
+
+// CHECK: file-deps:
+// CHECK-NEXT: simple-c-api.cpp
+// CHECK-NEXT: Inputs/header.h