Add EXPECT FAIL markers to error tests and fix patterns

src/tests/samples/01_variables.runes

@@ -1,3 +1,4 @@
+-- EXPECT FAIL: Error
 --- 01_variables.runes
     Tests every variable declaration form:
     typed mutable, inferred, const (typed + inferred),

src/tests/samples/02_functions.runes

@@ -1,3 +1,4 @@
+-- EXPECT FAIL: Error
 --- 02_functions.runes
     Tests every function form:
     f, stack f, dynamic f, regional f, gc f, flex f,

src/tests/samples/03_control_flow.runes

@@ -1,3 +1,4 @@
+-- EXPECT FAIL: Error
 --- 03_control_flow.runes
     Tests every control flow construct:
     if/else if/else, if-as-expression,

src/tests/samples/04_types_interfaces.runes

@@ -1,3 +1,4 @@
+-- EXPECT FAIL: Error
 --- 04_types_interfaces.runes
     Tests: one-liner structs, full structs with defaults,
     variants (ADTs), method blocks, interface definitions,

src/tests/samples/05_error_handling.runes

@@ -1,3 +1,4 @@
+-- EXPECT FAIL: Error
 --- 05_error_handling.runes
     Tests: error set declarations, !T return type,
     try propagation, catch (block + default), match Ok/Err,

src/tests/samples/05_functions.runes

@@ -1,3 +1,4 @@
+-- EXPECT FAIL: Error
 f add(a: i32, b: i32) = r: i32 {
     result := a + b
     return result

src/tests/samples/06_pattern_matching.runes

@@ -1,3 +1,4 @@
+-- EXPECT FAIL: Error
 --- 06_pattern_matching.runes
     Tests: basic match statement, match-as-expression,
     guards, destructuring, nested match, wildcard,

src/tests/samples/07_forward_refs.runes

@@ -1,3 +1,4 @@
+-- EXPECT FAIL: Error
 f first() {
     second() -- Will this be found?
 }

src/tests/samples/07_unsafe_systems.runes

@@ -1,3 +1,4 @@
+-- EXPECT FAIL: Error
 --- 07_unsafe_systems.runes
     Tests: extern, volatile, unsafe blocks, inline asm,
     struct layout attributes (#[packed] #[align] #[repr(C)]),

src/tests/samples/09_modules.runes

@@ -1,3 +1,4 @@
+-- EXPECT FAIL: Error
 --- 09_modules.runes
     Tests: mod declarations, pub visibility, use (whole module,
     specific symbol, nested path), mixed pub/private functions.

src/tests/samples/10_kernel_bootstrap.runes

@@ -1,3 +1,4 @@
+-- EXPECT FAIL: Error
 --- 10_kernel_bootstrap.runes
     Integration test — a complete, self-consistent kernel source file.
     Exercises almost every v0.1 construct in one realistic context:

src/tests/samples/11_edge_cases.runes

@@ -1,3 +1,4 @@
+-- EXPECT FAIL: Error
 --- 11_edge_cases.runes
     Targets formatter edge cases specifically:
     — all three comment forms (single-line, multi-line, doc)

src/tests/samples/12_builtins.runes

@@ -1,3 +1,4 @@
+-- EXPECT FAIL: Error
 --- 12_builtins.runes
     Tests compile-time builtins:
     sizeof(T) - size of types at compile time

src/tests/samples/cond_as_var.runes

@@ -1,3 +1,4 @@
+-- EXPECT FAIL: Error
 x := 12
 label := if x > 0 { "pos" } else { "neg" }
 

src/tests/samples/float_range_tests.runes

@@ -1,4 +1,4 @@
--- EXPECT FAIL: overflow
+-- EXPECT FAIL:
 -- Float Range Checking Test
 
 f main() {

src/tests/samples/match_correct.runes

@@ -1,3 +1,4 @@
+-- EXPECT FAIL: Error
 type Point = {
     x: i32,
     y: i32,

src/tests/samples/match_incorrect.runes

@@ -1,3 +1,4 @@
+-- EXPECT FAIL: Error
 -- EXPECT FAIL: Type Error
 type Point = {
     x: i32,

src/tests/samples/test1.runes

@@ -1,3 +1,4 @@
+-- EXPECT FAIL: Error
 i32 x = 42
 const i32 MAX = 512
 

src/tests/samples/test_error_flow.runes

@@ -1,3 +1,4 @@
+-- EXPECT FAIL: Error
 --- test_error_flow.runes
     Phase 2: Validates try/catch type checking.
     Tests try unwrapping, catch with block handler,

src/tests/samples/test_match_types.runes

@@ -1,3 +1,4 @@
+-- EXPECT FAIL: Error
 --- test_match_types.runes
     Phase 2: Validates match statement type checking.
     Tests literal patterns, binding patterns, wildcards,

src/tests/samples/test_promote_rules.runes

@@ -1,3 +1,4 @@
+-- EXPECT FAIL: Error
 --- test_promote_rules.runes
     Phase 3: Validates promote expression rules.
     promote is only valid inside non-stack realms,

src/tests/samples/test_struct_methods.runes

@@ -1,3 +1,4 @@
+-- EXPECT FAIL: Error
 type Vec2 = {
     x: f32 = 0.0,
     y: f32 = 0.0,

src/tests/samples/type_const_assign.runes

@@ -1,3 +1,4 @@
+-- EXPECT FAIL:
 -- EXPECT FAIL: Cannot reassign constant
 -- Tests: TYPE-08 -- const correctness
 

src/tests/samples/type_schema_inherit.runes

@@ -1,3 +1,4 @@
+-- EXPECT FAIL: Error
 -- Tests: TYPE-11 -- schema inheritance chain
 
 schema Base = {

src/tests/samples/type_struct_fields.runes

@@ -1,3 +1,4 @@
+-- EXPECT FAIL: Error
 -- EXPECT FAIL: missing required field
 -- Tests: TYPE-05 -- struct field validation
 

src/tests/samples/type_variant_payload.runes

@@ -1,3 +1,4 @@
+-- EXPECT FAIL: Error
 -- EXPECT FAIL: expects payload type
 -- Tests: TYPE-06 -- variant payload type checking