From 46cc0f6f74b38e5e6581d1b488ea3b2b100759e7 Mon Sep 17 00:00:00 2001
From: Matt Thalman <mthalman@microsoft.com>
Date: Wed, 19 Jul 2023 14:22:13 -0500
Subject: [PATCH] Add runtime patch to remove unnecessary suppressions

---
 ...0001-Remove-unnecessary-suppressions.patch | 64 +++++++++++++++++++
 1 file changed, 64 insertions(+)
 create mode 100644 src/SourceBuild/patches/runtime/0001-Remove-unnecessary-suppressions.patch

diff --git a/src/SourceBuild/patches/runtime/0001-Remove-unnecessary-suppressions.patch b/src/SourceBuild/patches/runtime/0001-Remove-unnecessary-suppressions.patch
new file mode 100644
index 000000000000..c31515591e3e
--- /dev/null
+++ b/src/SourceBuild/patches/runtime/0001-Remove-unnecessary-suppressions.patch
@@ -0,0 +1,64 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Matt Thalman <mthalman@microsoft.com>
+Date: Wed, 19 Jul 2023 09:57:31 -0500
+Subject: [PATCH] Remove unnecessary suppressions
+
+Backport: https://github.com/dotnet/runtime/issues/89206
+---
+ .../src/CompatibilitySuppressions.xml                | 12 ------------
+ .../src/CompatibilitySuppressions.xml                |  6 ------
+ 2 files changed, 18 deletions(-)
+
+diff --git a/src/coreclr/nativeaot/System.Private.CoreLib/src/CompatibilitySuppressions.xml b/src/coreclr/nativeaot/System.Private.CoreLib/src/CompatibilitySuppressions.xml
+index c410fee4e53..799cd7ab69d 100644
+--- a/src/coreclr/nativeaot/System.Private.CoreLib/src/CompatibilitySuppressions.xml
++++ b/src/coreclr/nativeaot/System.Private.CoreLib/src/CompatibilitySuppressions.xml
+@@ -800,10 +800,6 @@
+     <DiagnosticId>CP0001</DiagnosticId>
+     <Target>T:System.Diagnostics.DebugAnnotations</Target>
+   </Suppression>
+-  <Suppression>
+-    <DiagnosticId>CP0001</DiagnosticId>
+-    <Target>T:System.Diagnostics.DebuggerGuidedStepThroughAttribute</Target>
+-  </Suppression>
+   <Suppression>
+     <DiagnosticId>CP0001</DiagnosticId>
+     <Target>T:System.MDArray</Target>
+@@ -868,10 +864,6 @@
+     <DiagnosticId>CP0001</DiagnosticId>
+     <Target>T:System.Reflection.RuntimeAssemblyName</Target>
+   </Suppression>
+-  <Suppression>
+-    <DiagnosticId>CP0001</DiagnosticId>
+-    <Target>T:System.Runtime.CompilerServices.EagerStaticClassConstructionAttribute</Target>
+-  </Suppression>
+   <Suppression>
+     <DiagnosticId>CP0001</DiagnosticId>
+     <Target>T:System.Runtime.CompilerServices.ForceDictionaryLookupsAttribute</Target>
+@@ -1006,8 +998,4 @@
+     <Left>ref/net8.0/System.Private.CoreLib.dll</Left>
+     <Right>lib/net8.0/System.Private.CoreLib.dll</Right>
+   </Suppression>
+-  <Suppression>
+-    <DiagnosticId>CP0016</DiagnosticId>
+-    <Target>M:System.Runtime.InteropServices.Marshal.GetObjectForNativeVariant``1(System.IntPtr)-&gt;T?:[T:System.Diagnostics.CodeAnalysis.MaybeNullAttribute]</Target>
+-  </Suppression>
+ </Suppressions>
+\ No newline at end of file
+diff --git a/src/libraries/System.Runtime.InteropServices.JavaScript/src/CompatibilitySuppressions.xml b/src/libraries/System.Runtime.InteropServices.JavaScript/src/CompatibilitySuppressions.xml
+index ce09898be3a..8e4cf516027 100644
+--- a/src/libraries/System.Runtime.InteropServices.JavaScript/src/CompatibilitySuppressions.xml
++++ b/src/libraries/System.Runtime.InteropServices.JavaScript/src/CompatibilitySuppressions.xml
+@@ -43,12 +43,6 @@
+     <Left>ref/net8.0/System.Runtime.InteropServices.JavaScript.dll</Left>
+     <Right>runtimes/browser/lib/net8.0/System.Runtime.InteropServices.JavaScript.dll</Right>
+   </Suppression>
+-  <Suppression>
+-    <DiagnosticId>CP0001</DiagnosticId>
+-    <Target>T:System.Runtime.InteropServices.JavaScript.WebWorker</Target>
+-    <Left>ref/net8.0/System.Runtime.InteropServices.JavaScript.dll</Left>
+-    <Right>runtimes/browser/lib/net8.0/System.Runtime.InteropServices.JavaScript.dll</Right>
+-  </Suppression>
+   <Suppression>
+     <DiagnosticId>CP0001</DiagnosticId>
+     <Target>T:System.Runtime.InteropServices.JavaScript.CancelablePromise</Target>