Enables disabled error trace test on Windows

test/error_traces.zig

@@ -452,26 +452,37 @@ pub fn addCases(cases: *@import("tests.zig").ErrorTracesContext, os: std.Target.
         },
     });
 
-    // TODO: the standard library has a bug in PDB parsing where given an address corresponding
-    // to an inline call, the frame we see will be for the *caller*, not the *callee*. As a
-    // result this test gives bogus results on Windows right now.
-    // This is a part of https://codeberg.org/ziglang/zig/issues/30847.
-    if (os != .windows) {
-        cases.addCase(.{
-            .name = "trace through inline call",
-            .source =
-            \\pub fn main() !void {
-            \\    try foo();
-            \\}
-            \\inline fn foo() !void {
-            \\    try bar();
-            \\}
-            \\fn bar() !void {
+    cases.addCase(.{
+        .name = "trace through inline call",
+        .source =
+        \\pub fn main() !void {
+        \\    try foo();
+        \\}
+        \\inline fn foo() !void {
+        \\    try bar();
+        \\}
+        \\fn bar() !void {
+        \\    return error.ThisIsSoSad;
+        \\}
+        ,
+        .expect_error = "ThisIsSoSad",
+        .expect_trace =
+        switch (os) {
+            // LLVM doesn't emit column info in the binary annotations for inlinee callees in PDBs,
+            // so our expected result is slightly different for Windows than on other operating
+            // systems.
+            .windows =>
+            \\source.zig:8:5: [address] in bar
             \\    return error.ThisIsSoSad;
-            \\}
+            \\    ^
+            \\source.zig:5: [address] in foo
+            \\    try bar();
+            \\
+            \\source.zig:2:5: [address] in main
+            \\    try foo();
+            \\    ^
             ,
-            .expect_error = "ThisIsSoSad",
-            .expect_trace =
+            else =>
             \\source.zig:8:5: [address] in bar
             \\    return error.ThisIsSoSad;
             \\    ^
@@ -482,24 +493,24 @@ pub fn addCases(cases: *@import("tests.zig").ErrorTracesContext, os: std.Target.
             \\    try foo();
             \\    ^
             ,
-            .disable_trace_optimized = &.{
-                .{ .x86_64, .freebsd },
-                .{ .x86_64, .netbsd },
-                .{ .x86_64, .linux },
-                .{ .x86, .linux },
-                .{ .aarch64, .freebsd },
-                .{ .aarch64, .netbsd },
-                .{ .aarch64, .linux },
-                .{ .loongarch64, .linux },
-                .{ .powerpc64le, .linux },
-                .{ .riscv64, .linux },
-                .{ .s390x, .linux },
-                .{ .x86_64, .openbsd },
-                .{ .x86_64, .windows },
-                .{ .x86, .windows },
-                .{ .x86_64, .macos },
-                .{ .aarch64, .macos },
-            },
-        });
-    }
+        },
+        .disable_trace_optimized = &.{
+            .{ .x86_64, .freebsd },
+            .{ .x86_64, .netbsd },
+            .{ .x86_64, .linux },
+            .{ .x86, .linux },
+            .{ .aarch64, .freebsd },
+            .{ .aarch64, .netbsd },
+            .{ .aarch64, .linux },
+            .{ .loongarch64, .linux },
+            .{ .powerpc64le, .linux },
+            .{ .riscv64, .linux },
+            .{ .s390x, .linux },
+            .{ .x86_64, .openbsd },
+            .{ .x86_64, .windows },
+            .{ .x86, .windows },
+            .{ .x86_64, .macos },
+            .{ .aarch64, .macos },
+        },
+    });
 }

test/stack_traces.zig

@@ -238,9 +238,8 @@ pub fn addCases(cases: *@import("tests.zig").StackTracesContext, os: std.Target.
         .unwind = .any,
         .expect_panic = true,
         .expect = switch (os) {
-            // We use the information present in PDBs to resolve inlines when dumping stack traces
-            // on Windows. Column numbers are missing as LLVM doesn't emit column info in the PDBs
-            // for inline functions.
+            // LLVM doesn't emit column info in the binary annotations for inlinee callees in PDBs,
+            // so the first location has only a row.
             .windows =>
             \\panic: oh no
             \\source.zig:5: [address] in foo
@@ -251,7 +250,8 @@ pub fn addCases(cases: *@import("tests.zig").StackTracesContext, os: std.Target.
             \\       ^
             \\
             ,
-            // We don't yet resolve inlines on other platforms.
+            // On all other platforms, we resolve the innermost inline callee but we don't yet
+            // resolve the inline callers.
             else =>
             \\panic: oh no
             \\source.zig:5:5: [address] in foo
@@ -294,9 +294,8 @@ pub fn addCases(cases: *@import("tests.zig").StackTracesContext, os: std.Target.
         ,
         .unwind = .any,
         .expect_panic = true,
+        // This switch serves a similar purpose as in "inline panic".
         .expect = switch (os) {
-            // Similarly to "inline panic", we can resolve inlines from PDBs but LLVM doesn't emit
-            // column info for them.
             .windows =>
             \\panic: oh no
             \\source.zig:11: [address] in baz
@@ -313,7 +312,6 @@ pub fn addCases(cases: *@import("tests.zig").StackTracesContext, os: std.Target.
             \\       ^
             \\
             ,
-            // Similarly to "inline panic", we don't yet resolve inlines on other platforms.
             else =>
             \\panic: oh no
             \\source.zig:11:5: [address] in baz