test harness improvements

 * `-Dskip-compile-errors` is removed; `-Dskip-stage1` is added.
 * Use `std.testing.allocator` instead of a new instance of GPA.
   - Fix the memory leaks this revealed.
 * Show the file name when it is not parsed correctly such as when the
   manifest is missing.
   - Better error messages when test files are not parsed correctly.
 * Ignore unknown files such as swap files.
 * Move logic from declarative file to the test harness implementation.
 * Move stage1 tests to stage2 tests where appropriate.

5 files changed, 35 insertions, 34 deletions

diff --git a/test/compile_errors/stage1/exe/std.fmt_error_for_unused_arguments.zig b/test/compile_errors/stage1/obj/std.fmt_error_for_unused_arguments.zig
index 7da78d5b03..68299c2177 100644
--- a/test/compile_errors/stage1/exe/std.fmt_error_for_unused_arguments.zig
+++ b/test/compile_errors/stage1/obj/std.fmt_error_for_unused_arguments.zig
@@ -1,4 +1,4 @@
-pub fn main() !void {
+export fn entry() void {
     @import("std").debug.print("{d} {d} {d} {d} {d}", .{1,2,3,4,5,6,7,8,9,10,11,12,13,14,15});
 }
 
diff --git a/test/compile_errors/stage1/test/unused_variable_error_on_errdefer.zig b/test/compile_errors/stage1/obj/unused_variable_error_on_errdefer.zig
index eb92776938..eb92776938 100644
--- a/test/compile_errors/stage1/test/unused_variable_error_on_errdefer.zig
+++ b/test/compile_errors/stage1/obj/unused_variable_error_on_errdefer.zig
diff --git a/test/compile_errors/stage1/test/duplicate-unused_labels.zig b/test/compile_errors/stage1/test/duplicate-unused_labels.zig
deleted file mode 100644
index 285741afc4..0000000000
--- a/test/compile_errors/stage1/test/duplicate-unused_labels.zig
+++ /dev/null
@@ -1,30 +0,0 @@
-comptime {
-    blk: { blk: while (false) {} }
-}
-comptime {
-    blk: while (false) { blk: for (@as([0]void, undefined)) |_| {} }
-}
-comptime {
-    blk: for (@as([0]void, undefined)) |_| { blk: {} }
-}
-comptime {
-    blk: {}
-}
-comptime {
-    blk: while(false) {}
-}
-comptime {
-    blk: for(@as([0]void, undefined)) |_| {}
-}
-
-// duplicate/unused labels
-//
-// tmp.zig:2:12: error: redefinition of label 'blk'
-// tmp.zig:2:5: note: previous definition here
-// tmp.zig:5:26: error: redefinition of label 'blk'
-// tmp.zig:5:5: note: previous definition here
-// tmp.zig:8:46: error: redefinition of label 'blk'
-// tmp.zig:8:5: note: previous definition here
-// tmp.zig:11:5: error: unused block label
-// tmp.zig:14:5: error: unused while loop label
-// tmp.zig:17:5: error: unused for loop label
diff --git a/test/compile_errors/stage1/obj/constant_inside_comptime_function_has_compile_error.zig b/test/compile_errors/stage2/constant_inside_comptime_function_has_compile_error.zig
index 8eabcfdeaa..969b73713f 100644
--- a/test/compile_errors/stage1/obj/constant_inside_comptime_function_has_compile_error.zig
+++ b/test/compile_errors/stage2/constant_inside_comptime_function_has_compile_error.zig
@@ -2,6 +2,7 @@ const ContextAllocator = MemoryPool(usize);
 
 pub fn MemoryPool(comptime T: type) type {
     const free_list_t = @compileError("aoeu",);
+    _ = T;
 
     return struct {
         free_list: free_list_t,
@@ -10,10 +11,10 @@ pub fn MemoryPool(comptime T: type) type {
 
 export fn entry() void {
     var allocator: ContextAllocator = undefined;
+    _ = allocator;
 }
 
 // constant inside comptime function has compile error
 //
-// tmp.zig:4:5: error: unreachable code
-// tmp.zig:4:25: note: control flow is diverted here
-// tmp.zig:12:9: error: unused local variable
+// :4:5: error: unreachable code
+// :4:25: note: control flow is diverted here
diff --git a/test/compile_errors/stage2/duplicate-unused_labels.zig b/test/compile_errors/stage2/duplicate-unused_labels.zig
new file mode 100644
index 0000000000..82afe4e854
--- /dev/null
+++ b/test/compile_errors/stage2/duplicate-unused_labels.zig
@@ -0,0 +1,30 @@
+comptime {
+    blk: { blk: while (false) {} }
+}
+comptime {
+    blk: while (false) { blk: for (@as([0]void, undefined)) |_| {} }
+}
+comptime {
+    blk: for (@as([0]void, undefined)) |_| { blk: {} }
+}
+comptime {
+    blk: {}
+}
+comptime {
+    blk: while(false) {}
+}
+comptime {
+    blk: for(@as([0]void, undefined)) |_| {}
+}
+
+// duplicate/unused labels
+//
+// :2:12: error: redefinition of label 'blk'
+// :2:5: note: previous definition here
+// :5:26: error: redefinition of label 'blk'
+// :5:5: note: previous definition here
+// :8:46: error: redefinition of label 'blk'
+// :8:5: note: previous definition here
+// :11:5: error: unused block label
+// :14:5: error: unused while loop label
+// :17:5: error: unused for loop label