Rewrite mixin application handling in Fasta.

tests/language/language_kernel.status

Index: tests/language/language_kernel.status
diff --git a/tests/language/language_kernel.status b/tests/language/language_kernel.status
index d4a88460ab4531ff1c370566dc76ac0c141c697e..2c056c608b78f977bea0e74784c00bbf9afdc009 100644
--- a/tests/language/language_kernel.status
+++ b/tests/language/language_kernel.status
@@ -148,6 +148,7 @@ mixin_forwarding_constructor4_test/03: MissingCompileTimeError # KernelVM bug: I
 mixin_super_constructor_named_test/01: MissingCompileTimeError # KernelVM bug: Issue 15101
 mixin_super_constructor_positionals_test/01: MissingCompileTimeError # KernelVM bug: Issue 15101
 
+mixin_type_parameters_mixin_extends_test: RuntimeError # KernelVM bug: Issue 29537
 mixin_type_parameters_super_extends_test: RuntimeError # KernelVM bug: Issue 29537
 mixin_type_parameters_super_test: RuntimeError # KernelVM bug: Issue 29537
 
@@ -163,11 +164,7 @@ vm/closure_memory_retention_test: Skip  # KernelVM bug: Hits OOM
 
 list_literal4_test: RuntimeError # KernelVM bug: Checked mode problem: list literals aren't checked.
 
-generic_field_mixin2_test: RuntimeError # Fasta bug: Bad compilation of mixins with type arguments.
-generic_field_mixin3_test: RuntimeError # Fasta bug: Bad compilation of mixins with type arguments.
-generic_field_mixin4_test: RuntimeError # Fasta bug: Bad compilation of mixins with type arguments.
-generic_field_mixin5_test: RuntimeError # Fasta bug: Bad compilation of mixins with type arguments.
-generic_field_mixin_test: RuntimeError # Fasta bug: Bad compilation of mixins with type arguments.
+generic_field_mixin4_test: RuntimeError # KernelVM bug: Issue 29553
 
 redirecting_factory_long_test: RuntimeError # Fasta bug: Bad compilation of type arguments for redirecting factory.
 
@@ -205,13 +202,6 @@ malformed_test/none: RuntimeError # Fasta bug: Leads to assertion error in Fasta
 export_double_same_main_test: CompileTimeError # Fasta bug: Main is exported.
 export_main_test: CompileTimeError # Fasta bug: Main is exported.
 
-mixin_mixin3_test: RuntimeError # Fasta bug: Incorrect mixin canonicalization.
-
-mixin_mixin5_test: RuntimeError # Fasta bug: Mixin application in named mixin of named mixin.
-mixin_mixin6_test: RuntimeError # Fasta bug: Mixin application in named mixin of named mixin.
-mixin_mixin7_test: RuntimeError # Fasta bug: Mixin application in named mixin of named mixin.
-mixin_mixin_bound2_test: RuntimeError # Fasta bug: Mixin application in named mixin of named mixin.
-
 const_constructor_nonconst_field_test/01: MissingCompileTimeError # Fasta bug: Non-const expression in field initializer.
 
 method_name_test: CompileTimeError # Fasta bug: Parser bug.
@@ -219,9 +209,6 @@ method_name_test: CompileTimeError # Fasta bug: Parser bug.
 generic_metadata_test/02: MissingCompileTimeError # Fasta bug: Type arguments aren't allowed on metadata?!
 generic_metadata_test/03: MissingCompileTimeError # Fasta bug: Type arguments aren't allowed on metadata?!
 
-malformed_inheritance_test/09: MissingCompileTimeError # Fasta bug: Wrong resolution of type variables in superclass.
-malformed_inheritance_test/10: MissingCompileTimeError # Fasta bug: Wrong resolution of type variables in superclass.
-
 named_constructor_test/01: MissingRuntimeError # Fasta bug: Bad compilation of constructor reference.
 
 # dartk: JIT & AOT failures (debug)