Sema: improve source location in errors

resolves #12793

1 files changed, 88 insertions, 3 deletions

diff --git a/test/cases/compile_errors/assign_to_constant_variable.zig b/test/cases/compile_errors/assign_to_constant_variable.zig
index af6f33ec66..b09bf26259 100644
--- a/test/cases/compile_errors/assign_to_constant_variable.zig
+++ b/test/cases/compile_errors/assign_to_constant_variable.zig
@@ -1,6 +1,74 @@
-export fn f() void {
-    const a = 3;
-    a = 4;
+export fn entry1() void {
+    const a = 1;
+    a = 1;
+}
+export fn entry2() void {
+    const a = 1;
+    a |= 1;
+}
+export fn entry3() void {
+    const a = 1;
+    a %= 1;
+}
+export fn entry4() void {
+    const a = 1;
+    a ^= 1;
+}
+export fn entry5() void {
+    const a = 1;
+    a += 1;
+}
+export fn entry6() void {
+    const a = 1;
+    a +%= 1;
+}
+export fn entry7() void {
+    const a = 1;
+    a +|= 1;
+}
+export fn entry8() void {
+    const a = 1;
+    a -= 1;
+}
+export fn entry9() void {
+    const a = 1;
+    a -%= 1;
+}
+export fn entry10() void {
+    const a = 1;
+    a -|= 1;
+}
+export fn entry11() void {
+    const a = 1;
+    a *= 1;
+}
+export fn entry12() void {
+    const a = 1;
+    a *%= 1;
+}
+export fn entry13() void {
+    const a = 1;
+    a *|= 1;
+}
+export fn entry14() void {
+    const a = 1;
+    a /= 1;
+}
+export fn entry15() void {
+    const a = 1;
+    a &= 1;
+}
+export fn entry16() void {
+    const a = 1;
+    a <<= 1;
+}
+export fn entry17() void {
+    const a = 1;
+    a <<|= 1;
+}
+export fn entry18() void {
+    const a = 1;
+    a >>= 1;
 }
 
 // error
@@ -8,3 +76,20 @@ export fn f() void {
 // target=native
 //
 // :3:9: error: cannot assign to constant
+// :7:7: error: cannot assign to constant
+// :11:7: error: cannot assign to constant
+// :15:7: error: cannot assign to constant
+// :19:7: error: cannot assign to constant
+// :23:7: error: cannot assign to constant
+// :27:7: error: cannot assign to constant
+// :31:7: error: cannot assign to constant
+// :35:7: error: cannot assign to constant
+// :39:7: error: cannot assign to constant
+// :43:7: error: cannot assign to constant
+// :47:7: error: cannot assign to constant
+// :51:7: error: cannot assign to constant
+// :55:7: error: cannot assign to constant
+// :59:7: error: cannot assign to constant
+// :63:7: error: cannot assign to constant
+// :67:7: error: cannot assign to constant
+// :71:7: error: cannot assign to constant