Sema: more runtime indexing comptime value checks

test/cases/compile_errors/non-inline_for_loop_on_a_type_that_requires_comptime.zig

@@ -0,0 +1,16 @@
+const Foo = struct {
+    name: []const u8,
+    T: type,
+};
+export fn entry() void {
+    const xx: [2]Foo = .{ .{ .name = "", .T = u8 }, .{ .name = "", .T = u8 } };
+    for (xx) |f| { _ = f;}
+}
+
+// error
+// backend=stage2
+// target=native
+//
+// :7:10: error: values of type '[2]tmp.Foo' must be comptime known, but index value is runtime known
+// :3:8: note: struct requires comptime because of this field
+// :3:8: note: types are not available at runtime

test/cases/compile_errors/range_operator_in_switch_used_on_error_set.zig

@@ -0,0 +1,20 @@
+export fn entry() void {
+    foo(452) catch |err| switch (err) {
+        error.Foo ... error.Bar => {},
+        else => {},
+    };
+}
+fn foo(x: i32) !void {
+    switch (x) {
+        0 ... 10 => return error.Foo,
+        11 ... 20 => return error.Bar,
+        else => {},
+    }
+}
+
+// error
+// backend=llvm
+// target=native
+//
+// :2:34: error: ranges not allowed when switching on type '@typeInfo(@typeInfo(@TypeOf(tmp.foo)).Fn.return_type.?).ErrorUnion.error_set'
+// :3:19: note: range here

test/cases/compile_errors/reading_past_end_of_pointer_casted_array.zig

@@ -7,7 +7,7 @@ comptime {
 }
 
 // error
-// backend=stage1
+// backend=stage2
 // target=native
 //
-// tmp.zig:5:26: error: attempt to read 4 bytes from [4]u8 at index 1 which is 3 bytes
+// :5:26: error: dereference of '*const u24' exceeds bounds of containing decl of type '[4]u8'

test/cases/compile_errors/runtime_index_into_comptime_type_slice.zig

@@ -0,0 +1,20 @@
+const Struct = struct {
+    a: u32,
+};
+fn getIndex() usize {
+    return 2;
+}
+export fn entry() void {
+    const index = getIndex();
+    const field = @typeInfo(Struct).Struct.fields[index];
+    _ = field;
+}
+
+// error
+// backend=stage2
+// target=native
+//
+// :9:51: error: values of type '[]const builtin.Type.StructField' must be comptime known, but index value is runtime known
+// :287:21: note: struct requires comptime because of this field
+// :287:21: note: types are not available at runtime
+// :290:20: note: struct requires comptime because of this field

test/cases/compile_errors/stage1/obj/non-inline_for_loop_on_a_type_that_requires_comptime.zig

@@ -1,14 +0,0 @@
-const Foo = struct {
-    name: []const u8,
-    T: type,
-};
-export fn entry() void {
-    const xx: [2]Foo = undefined;
-    for (xx) |f| { _ = f;}
-}
-
-// error
-// backend=stage1
-// target=native
-//
-// tmp.zig:7:5: error: values of type 'Foo' must be comptime known, but index value is runtime known

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

@@ -1,19 +0,0 @@
-export fn entry() void {
-    try foo(452) catch |err| switch (err) {
-        error.A ... error.B => {},
-        else => {},
-    };
-}
-fn foo(x: i32) !void {
-    switch (x) {
-        0 ... 10 => return error.Foo,
-        11 ... 20 => return error.Bar,
-        else => {},
-    }
-}
-
-// error
-// backend=stage1
-// target=native
-//
-// tmp.zig:3:17: error: operator not allowed for errors

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

@@ -1,17 +0,0 @@
-const Struct = struct {
-    a: u32,
-};
-fn getIndex() usize {
-    return 2;
-}
-export fn entry() void {
-    const index = getIndex();
-    const field = @typeInfo(Struct).Struct.fields[index];
-    _ = field;
-}
-
-// error
-// backend=stage1
-// target=native
-//
-// tmp.zig:9:51: error: values of type 'std.builtin.Type.StructField' must be comptime known, but index value is runtime known