JIT: test the new cse policy in jit-experimental

Add some minimal CI testing for this new CSE heuristic.

Remove testing of cross-block assertion prop, since it's now on by default.

Contributes to dotnet#92915.

eng/pipelines/common/templates/runtimes/run-test-job.yml

@@ -585,7 +585,7 @@ jobs:
             - jitobjectstackallocation
             - jitphysicalpromotion_only
             - jitphysicalpromotion_full
-            - jitcrossblocklocalassertionprop
+            - jitrlcse
         ${{ if in(parameters.testGroup, 'jit-cfg') }}:
           scenarios:
           - jitcfg

eng/pipelines/libraries/run-test-job.yml

@@ -242,7 +242,7 @@ jobs:
                 - jitosr_stress_random
                 - syntheticpgo
                 - syntheticpgo_blend
-                - jitcrossblocklocalassertionprop
+                - jitrlcse
 
         - ${{ if eq(parameters.SuperPmiCollect, true) }}:
           - template: /eng/pipelines/libraries/superpmi-postprocess-step.yml

src/tests/Common/testenvironment.proj

@@ -81,7 +81,7 @@
       RunningIlasmRoundTrip;
       DOTNET_JitSynthesizeCounts;
       DOTNET_JitCheckSynthesizedCounts;
-      DOTNET_JitEnableCrossBlockLocalAssertionProp
+      DOTNET_JitRLCSEGreedy;
     </DOTNETVariables>
   </PropertyGroup>
   <ItemGroup>
@@ -224,7 +224,6 @@
     <TestEnvironment Include="jitobjectstackallocation" JitObjectStackAllocation="1" TieredCompilation="0" />
     <TestEnvironment Include="jitphysicalpromotion_only" JitStressModeNames="STRESS_NO_OLD_PROMOTION" TieredCompilation="0" />
     <TestEnvironment Include="jitphysicalpromotion_full" JitStressModeNames="STRESS_PHYSICAL_PROMOTION_COST STRESS_NO_OLD_PROMOTION" TieredCompilation="0" />
-    <TestEnvironment Include="jitcrossblocklocalassertionprop" JitEnableCrossBlockLocalAssertionProp="1" TieredCompilation="0" />
     <TestEnvironment Include="jitcfg" JitForceControlFlowGuard="1" />
     <TestEnvironment Include="jitcfg_dispatcher_always" JitForceControlFlowGuard="1" JitCFGUseDispatcher="1" />
     <TestEnvironment Include="jitcfg_dispatcher_never" JitForceControlFlowGuard="1" JitCFGUseDispatcher="0" />
@@ -240,6 +239,7 @@
     <TestEnvironment Include="fullpgo_random_gdv_edge" TieredPGO="1" TieredCompilation="1" TC_QuickJitForLoops="1" ReadyToRun="0" JitRandomGuardedDevirtualization="1" JitRandomEdgeCounts="1" JitRandomlyCollect64BitCounts="1" />
     <TestEnvironment Include="syntheticpgo" TieredCompilation="1" TC_QuickJitForLoops="1" ReadyToRun="0" JitSynthesizeCounts="1" JitCheckSynthesizedProfile="1" />
     <TestEnvironment Include="syntheticpgo_blend" TieredPGO="1" TieredCompilation="1" TC_QuickJitForLoops="1" ReadyToRun="0" JitSynthesizeCounts="3" JitCheckSynthesizedProfile="1" />
+    <TestEnvironment Include="jitrlcse" JitRLCSEGreedy="1" />
     <TestEnvironment Include="gcstandalone" Condition="'$(TargetsWindows)' == 'true'" GCName="clrgc.dll"/>
     <TestEnvironment Include="gcstandalone" Condition="'$(TargetsWindows)' != 'true'" GCName="libclrgc.so"/>
     <TestEnvironment Include="gcstandaloneserver" Condition="'$(TargetsWindows)' == 'true'" gcServer="1" GCName="clrgc.dll"/>