[src] Make the trimmer inline Runtime.IsCoreCLR correctly for iOS, tvOS and Mac Catalyst (#24205)

Author: rolfbjarne

dotnet/targets/Xamarin.Shared.Sdk.targets

@@ -696,6 +696,8 @@
 			<RuntimeHostConfigurationOption Include="ObjCRuntime.Runtime.Arch.IsSimulator" Value="$(_IsSimulatorFeature)" Trim="true" />
 			<RuntimeHostConfigurationOption Include="ObjCRuntime.Runtime.IsManagedStaticRegistrar" Value="$(_IsManagedStaticRegistrarFeature)" Trim="true" />
 			<RuntimeHostConfigurationOption Include="ObjCRuntime.Runtime.IsNativeAOT" Value="$(_IsNativeAOTFeature)" Trim="true" />
+			<RuntimeHostConfigurationOption Include="ObjCRuntime.Runtime.IsCoreCLR" Value="true" Trim="true" Condition="'$(UseMonoRuntime)' != 'true'" />
+			<RuntimeHostConfigurationOption Include="ObjCRuntime.Runtime.IsCoreCLR" Value="false" Trim="true" Condition="'$(UseMonoRuntime)' == 'true'" />
 			<RuntimeHostConfigurationOption Include="ObjCRuntime.Class.ValidateObjectPointers" Value="$(_ValidateObjectPointers)" Trim="true" />
 
 			<!-- Configure System.Net.Http Native Handlers -->

src/ILLink.Substitutions.MacCatalyst.xml

@@ -4,8 +4,8 @@
       <method signature="System.Void WarnOnce()" body="stub" feature="System.Diagnostics.Debugger.IsSupported" featurevalue="false" />
     </type>
     <type fullname="ObjCRuntime.Runtime">
-      <method signature="System.Boolean get_IsCoreCLR()" body="stub" feature="ObjCRuntime.Runtime.IsNativeAOT" featurevalue="false" value="false" />
-      <method signature="System.Boolean get_IsCoreCLR()" body="stub" feature="ObjCRuntime.Runtime.IsNativeAOT" featurevalue="true" value="true" />
+      <method signature="System.Boolean get_IsCoreCLR()" body="stub" feature="ObjCRuntime.Runtime.IsCoreCLR" featurevalue="false" value="false" />
+      <method signature="System.Boolean get_IsCoreCLR()" body="stub" feature="ObjCRuntime.Runtime.IsCoreCLR" featurevalue="true" value="true" />
       <method signature="System.Boolean get_IsNativeAOT()" body="stub" feature="ObjCRuntime.Runtime.IsNativeAOT" featurevalue="false" value="false" />
       <method signature="System.Boolean get_IsNativeAOT()" body="stub" feature="ObjCRuntime.Runtime.IsNativeAOT" featurevalue="true" value="true" />
       <method signature="System.Boolean get_IsManagedStaticRegistrar()" body="stub" feature="ObjCRuntime.Runtime.IsManagedStaticRegistrar" featurevalue="false" value="false" />

src/ILLink.Substitutions.ios.xml

@@ -4,8 +4,8 @@
       <method signature="System.Void WarnOnce()" body="stub" feature="System.Diagnostics.Debugger.IsSupported" featurevalue="false" />
     </type>
     <type fullname="ObjCRuntime.Runtime">
-      <method signature="System.Boolean get_IsCoreCLR()" body="stub" feature="ObjCRuntime.Runtime.IsNativeAOT" featurevalue="false" value="false" />
-      <method signature="System.Boolean get_IsCoreCLR()" body="stub" feature="ObjCRuntime.Runtime.IsNativeAOT" featurevalue="true" value="true" />
+      <method signature="System.Boolean get_IsCoreCLR()" body="stub" feature="ObjCRuntime.Runtime.IsCoreCLR" featurevalue="false" value="false" />
+      <method signature="System.Boolean get_IsCoreCLR()" body="stub" feature="ObjCRuntime.Runtime.IsCoreCLR" featurevalue="true" value="true" />
       <method signature="System.Boolean get_IsNativeAOT()" body="stub" feature="ObjCRuntime.Runtime.IsNativeAOT" featurevalue="false" value="false" />
       <method signature="System.Boolean get_IsNativeAOT()" body="stub" feature="ObjCRuntime.Runtime.IsNativeAOT" featurevalue="true" value="true" />
       <method signature="System.Int32 GetRuntimeArch()" body="stub" feature="ObjCRuntime.Runtime.Arch.IsSimulator" featurevalue="false" value="0" />

src/ILLink.Substitutions.tvos.xml

@@ -4,8 +4,8 @@
       <method signature="System.Void WarnOnce()" body="stub" feature="System.Diagnostics.Debugger.IsSupported" featurevalue="false" />
     </type>
     <type fullname="ObjCRuntime.Runtime">
-      <method signature="System.Boolean get_IsCoreCLR()" body="stub" feature="ObjCRuntime.Runtime.IsNativeAOT" featurevalue="false" value="false" />
-      <method signature="System.Boolean get_IsCoreCLR()" body="stub" feature="ObjCRuntime.Runtime.IsNativeAOT" featurevalue="true" value="true" />
+      <method signature="System.Boolean get_IsCoreCLR()" body="stub" feature="ObjCRuntime.Runtime.IsCoreCLR" featurevalue="false" value="false" />
+      <method signature="System.Boolean get_IsCoreCLR()" body="stub" feature="ObjCRuntime.Runtime.IsCoreCLR" featurevalue="true" value="true" />
       <method signature="System.Boolean get_IsNativeAOT()" body="stub" feature="ObjCRuntime.Runtime.IsNativeAOT" featurevalue="false" value="false" />
       <method signature="System.Boolean get_IsNativeAOT()" body="stub" feature="ObjCRuntime.Runtime.IsNativeAOT" featurevalue="true" value="true" />
       <method signature="System.Int32 GetRuntimeArch()" body="stub" feature="ObjCRuntime.Runtime.Arch.IsSimulator" featurevalue="false" value="0" />