test: check compile errors when compilation has no errors

lib/std/Build/Step.zig

@@ -415,7 +415,7 @@ pub fn evalZigProcess(
         .Exited => {
             // Note that the exit code may be 0 in this case due to the
             // compiler server protocol.
-            if (compile.expect_errors != null and s.result_error_bundle.errorMessageCount() > 0) {
+            if (compile.expect_errors != null) {
                 return error.NeedCompileErrorCheck;
             }
         },

lib/std/zig/ErrorBundle.zig

@@ -162,6 +162,7 @@ pub fn renderToStdErr(eb: ErrorBundle, options: RenderOptions) void {
 }
 
 pub fn renderToWriter(eb: ErrorBundle, options: RenderOptions, writer: anytype) anyerror!void {
+    if (eb.extra.len == 0) return;
     for (eb.getMessages()) |err_msg| {
         try renderErrorMessageToWriter(eb, options, err_msg, writer, "error", .red, 0);
     }

src/Sema.zig

@@ -6173,6 +6173,7 @@ fn zirSetAlignStack(sema: *Sema, block: *Block, extended: Zir.Inst.Extended.Inst
         };
         return sema.failWithOwnedErrorMsg(block, msg);
     }
+    sema.prev_stack_alignment_src = src;
 
     const ip = &mod.intern_pool;
     const a = ip.funcAnalysis(sema.func_index);

test/cases/compile_errors/@trap_comptime_call.zig

@@ -1,4 +1,4 @@
-pub fn entry() void {
+export fn entry() void {
     comptime @trap();
 }
 

test/cases/compile_errors/C_pointer_pointing_to_non_C_ABI_compatible_type_or_has_align_attr.zig

@@ -1,4 +1,4 @@
-const Foo = struct {};
+const Foo = struct { a: u32 };
 export fn a() void {
     const T = [*c]Foo;
     var t: T = undefined;

test/cases/compile_errors/accessing_runtime_paramter_outside_function_scope.zig

@@ -2,7 +2,7 @@ export fn entry(y: u8) void {
     const Thing = struct {
         y: u8 = y,
     };
-    _ = @sizeOf(Thing);
+    _ = Thing{ .y = 1 };
 }
 
 // error

test/cases/compile_errors/catch_on_undefined_value.zig

@@ -1,6 +1,6 @@
 comptime {
     var a: anyerror!bool = undefined;
-    _ = a catch false;
+    if (a catch false) {}
 }
 
 // error

test/cases/compile_errors/enum_with_declarations_unavailable_for_reify_type.zig

@@ -1,7 +1,7 @@
 export fn entry() void {
     _ = @Type(@typeInfo(enum {
         foo,
-        const bar = 1;
+        pub const bar = 1;
     }));
 }
 

test/cases/compile_errors/extern_function_with_unspecified_calling_convention.zig

@@ -2,7 +2,7 @@ const Foo = extern struct {
     f: *const fn() void,
 };
 
-pub fn entry() void {
+export fn entry() void {
     _ = (Foo{}).f;
 }
 

test/cases/compile_errors/invalid_extern_function_call.zig

@@ -1,10 +1,10 @@
 const x = @extern(*const fn() callconv(.C) void, .{ .name = "foo" });
 
-pub fn entry0() void {
+export fn entry0() void {
     comptime x();
 }
 
-pub fn entry1() void {
+export fn entry1() void {
     @call(.always_inline, x, .{});
 }
 

test/cases/compile_errors/slice_of_pointer_must_include_end_value.zig

@@ -1,10 +0,0 @@
-comptime {
-    var ptr: [*]u8 = undefined;
-    _ = ptr[0..];
-}
-
-// error
-// backend=stage2
-// target=native
-//
-// :3:12: error: slice of pointer must include end value

test/cases/compile_errors/struct_with_declarations_unavailable_for_reify_type.zig

@@ -1,6 +1,6 @@
 export fn entry() void {
     _ = @Type(@typeInfo(struct {
-        const foo = 1;
+        pub const foo = 1;
     }));
 }