Sema: validate deref operator type and value

test/cases/compile_errors/assign_to_invalid_dereference.zig

@@ -0,0 +1,9 @@
+export fn entry() void {
+    'a'.* = 1;
+}
+
+// error
+// backend=stage2
+// target=native
+//
+// :2:8: error: cannot dereference non-pointer type 'comptime_int'

test/cases/compile_errors/deref_on_undefined_value.zig

@@ -4,7 +4,7 @@ comptime {
 }
 
 // error
-// backend=stage1
+// backend=stage2
 // target=native
 //
-// tmp.zig:3:9: error: attempt to dereference undefined value
+// :3:10: error: cannot dereference undefined value

test/cases/compile_errors/deref_slice_and_get_len_field.zig

@@ -4,7 +4,7 @@ export fn entry() void {
 }
 
 // error
-// backend=stage1
+// backend=stage2
 // target=native
 //
-// tmp.zig:3:10: error: attempt to dereference non-pointer type '[]u8'
+// :3:10: error: index syntax required for slice type '[]u8'

test/cases/compile_errors/dereference_an_array.zig

@@ -5,10 +5,10 @@ pub fn pass(in: []u8) []u8 {
     return out.*[0..1];
 }
 
-export fn entry() usize { return @sizeOf(@TypeOf(pass)); }
+export fn entry() usize { return @sizeOf(@TypeOf(&pass)); }
 
 // error
-// backend=stage1
+// backend=stage2
 // target=native
 //
-// tmp.zig:4:10: error: attempt to dereference non-pointer type '[10]u8'
+// :4:10: error: cannot dereference non-pointer type '[10]u8'

test/cases/compile_errors/dereference_slice.zig

@@ -0,0 +1,12 @@
+fn entry(x: []i32) i32 {
+    return x.*;
+}
+comptime {
+    _ = entry;
+}
+
+// error
+// backend=stage2
+// target=native
+//
+// :2:13: error: index syntax required for slice type '[]i32'

test/cases/compile_errors/dereference_unknown_length_pointer.zig

@@ -0,0 +1,9 @@
+export fn entry(x: [*]i32) i32 {
+    return x.*;
+}
+
+// error
+// backend=stage2
+// target=native
+//
+// :2:13: error: index syntax required for unknown-length pointer type '[*]i32'

test/cases/compile_errors/invalid_deref_on_switch_target.zig

@@ -11,7 +11,7 @@ const Tile = enum {
 };
 
 // error
-// backend=stage1
+// backend=stage2
 // target=native
 //
-// tmp.zig:3:17: error: attempt to dereference non-pointer type 'Tile'
+// :3:17: error: cannot dereference non-pointer type 'tmp.Tile'

test/cases/compile_errors/invalid_multiple_dereferences.zig

@@ -12,8 +12,8 @@ pub const Box = struct {
 };
 
 // error
-// backend=stage1
+// backend=stage2
 // target=native
 //
-// tmp.zig:3:8: error: attempt to dereference non-pointer type 'Box'
-// tmp.zig:8:13: error: attempt to dereference non-pointer type 'Box'
+// :3:8: error: cannot dereference non-pointer type 'tmp.Box'
+// :8:13: error: cannot dereference non-pointer type 'tmp.Box'

test/cases/compile_errors/stage1/obj/assign_to_invalid_dereference.zig

@@ -1,9 +0,0 @@
-export fn entry() void {
-    'a'.* = 1;
-}
-
-// error
-// backend=stage1
-// target=native
-//
-// tmp.zig:2:8: error: attempt to dereference non-pointer type 'comptime_int'

test/cases/compile_errors/stage1/obj/dereference_unknown_length_pointer.zig

@@ -1,9 +0,0 @@
-export fn entry(x: [*]i32) i32 {
-    return x.*;
-}
-
-// error
-// backend=stage1
-// target=native
-//
-// tmp.zig:2:13: error: index syntax required for unknown-length pointer type '[*]i32'

test/cases/compile_errors/stage1/obj/take_slice_of_invalid_dereference.zig

@@ -1,10 +0,0 @@
-export fn entry() void {
-    const x = 'a'.*[0..];
-    _ = x;
-}
-
-// error
-// backend=stage1
-// target=native
-//
-// tmp.zig:2:18: error: attempt to dereference non-pointer type 'comptime_int'

test/cases/compile_errors/take_slice_of_invalid_dereference.zig

@@ -0,0 +1,10 @@
+export fn entry() void {
+    const x = 'a'.*[0..];
+    _ = x;
+}
+
+// error
+// backend=stage2
+// target=native
+//
+// :2:18: error: cannot dereference non-pointer type 'comptime_int'