Enable UseLatestBehaviorWhenTFMNotSpecified for Unix corerun

While root causing some of our test failures on Linux, I found that
quirks were enabled, causing tests expecting new behavior to fail when
they encountered the old behavior.  This commit modifies the Unix
corerun to include the "UseLatestBehaviorWhenTFMNotSpecified" AppDomain
compat switch (as the Windows version does) so that execution on Unix
picks up the latest behavior rather than falling back to the old quirked
behavior.

diff --git a/src/coreclr/hosts/unixcorerun/corerun.cpp b/src/coreclr/hosts/unixcorerun/corerun.cpp
index 61939ac..28441a8 100644 (file)
--- a/src/coreclr/hosts/unixcorerun/corerun.cpp
+++ b/src/coreclr/hosts/unixcorerun/corerun.cpp
@@ -327,7 +327,8 @@ int ExecuteManagedAssembly(
                 "TRUSTED_PLATFORM_ASSEMBLIES",
                 "APP_PATHS",
                 "APP_NI_PATHS",
-                "NATIVE_DLL_SEARCH_DIRECTORIES"
+                "NATIVE_DLL_SEARCH_DIRECTORIES",
+                "AppDomainCompatSwitch"
             };
             const char *propertyValues[] = {
                 // TRUSTED_PLATFORM_ASSEMBLIES
@@ -337,7 +338,9 @@ int ExecuteManagedAssembly(
                 // APP_NI_PATHS
                 appPath.c_str(),
                 // NATIVE_DLL_SEARCH_DIRECTORIES
-                nativeDllSearchDirs.c_str()
+                nativeDllSearchDirs.c_str(),
+                // AppDomainCompatSwitch
+                "UseLatestBehaviorWhenTFMNotSpecified"
             };
 
             HRESULT st = executeAssembly(