addressing comment

Author: Joao Saffran

llvm/include/llvm/Frontend/HLSL/RootSignatureMetadata.h

@@ -93,10 +93,10 @@ class TableRegisterOverflowError
       : Type(Type), Register(Register), Space(Space) {}
 
   void log(raw_ostream &OS) const override {
-    OS << "Cannot bind resource of type "
+    OS << "Cannot append range with implicit lower bound after an unbounded "
+          "range "
        << getResourceClassName(toResourceClass(Type))
-       << "(register=" << Register << ", space=" << Space
-       << "), it exceeds the maximum allowed register value.";
+       << "(register=" << Register << ", space=" << Space << ").";
   }
 
   std::error_code convertToErrorCode() const override {

llvm/test/CodeGen/DirectX/rootsignature-validation-fail-appending-overflow.ll

@@ -1,7 +1,7 @@
 ; RUN: not opt -S -passes='dxil-post-optimization-validation' -mtriple=dxil-pc-shadermodel6.6-compute %s 2>&1 | FileCheck %s
 ; This test check if a resource is implicitly overflowing. That means, it is appending a resource after an unbounded range.
 
-; CHECK: error: Cannot bind resource of type UAV(register=0, space=0), it exceeds the maximum allowed register value. 
+; CHECK: error: Cannot append range with implicit lower bound after an unbounded range UAV(register=0, space=0).
 
 @TB.str = private unnamed_addr constant [3 x i8] c"TB\00", align 1
 
@@ -17,5 +17,3 @@ entry:
 !3 = !{!"DescriptorTable", i32 0, !4, !5}
 !4 = !{!"UAV", i32 -1, i32 1, i32 0, i32 2, i32 0}
 !5 = !{!"UAV", i32 1, i32 0, i32 0, i32 -1, i32 0}
-
-

llvm/test/CodeGen/DirectX/rootsignature-validation-fail-register-overflow.ll

@@ -1,5 +1,5 @@
 ; RUN: not opt -S -passes='dxil-post-optimization-validation' -mtriple=dxil-pc-shadermodel6.6-compute %s 2>&1 | FileCheck %s
-; CHECK: error: Cannot bind resource of type UAV(register=4294967295, space=0), it exceeds the maximum allowed register value.
+; CHECK: error: Cannot append range with implicit lower bound after an unbounded range UAV(register=4294967295, space=0).
 @TB.str = private unnamed_addr constant [3 x i8] c"TB\00", align 1
 
 define void @CSMain() "hlsl.shader"="compute" {
@@ -13,4 +13,3 @@ entry:
 !1 = !{!3}
 !3 = !{!"DescriptorTable", i32 0, !4}
 !4 = !{!"UAV", i32 100, i32 4294967295, i32 0, i32 -1, i32 0}
-