Resolve UnableToExtractDetailsFromSdkAssembly error when OperationType in OperationId conflicts with Definition name. (#332)

When OperationType value conflicts with a definition name, AutoREST generates method name by adding Method to the OperationType. Current error for swagger specs of Azure Servicebus and Relay services. ```powershell Generating module for 'C:\temp\AzureSwaggerSpecs\SwaggerSpecs\servicebus\servicebus.json'. Update-PathFunctionDetails : Module generation failed. If no error messages follow, check the output of code metadata extraction above Unable to find expected method 'CheckNameAvailabilityWithHttpMessagesAsync' on type 'Microsoft.PowerShell.Azservicebus.v001.INamespacesOperations' At C:\Code\PSSwagger\PSSwagger\PSSwagger.psm1:555 char:28 + ... onDetails = Update-PathFunctionDetails -PathFunctionDetails $PathFunc ... + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + CategoryInfo : NotSpecified: (:) [Write-Error], WriteErrorException + FullyQualifiedErrorId : UnableToExtractDetailsFromSdkAssembly,Update-PathFunctionDetails ``` ```powershell Generating module for 'C:\temp\AzureSwaggerSpecs\SwaggerSpecs\relay\relay.json'. Update-PathFunctionDetails : Module generation failed. If no error messages follow, check the output of code metadata extraction above Unable to find expected method 'CheckNameAvailabilityWithHttpMessagesAsync' on type 'Microsoft.PowerShell.Azrelay.v001.INamespacesOperations' At C:\Code\PSSwagger\PSSwagger\PSSwagger.psm1:555 char:28 + ... onDetails = Update-PathFunctionDetails -PathFunctionDetails $PathFunc ... + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + CategoryInfo : NotSpecified: (:) [Write-Error], WriteErrorException + FullyQualifiedErrorId : UnableToExtractDetailsFromSdkAssembly,Update-PathFunctionDetails ```

Author: bmanikm

PSSwagger/Paths.psm1

@@ -1034,12 +1034,13 @@ function Set-ExtendedCodeMetadata {
  }
 
  $operationId = $parameterSetDetail.OperationId
- $methodName = ''
+ $methodNames = @()
  $operations = ''
  $operationsWithSuffix = ''
  $opIdValues = $operationId -split '_',2 
  if(-not $opIdValues -or ($opIdValues.count -ne 2)) {
- $methodName = $operationId + 'WithHttpMessagesAsync'
+ $methodNames += $operationId + 'WithHttpMessagesAsync'
+ $methodNames += $operationId + 'Method' + 'WithHttpMessagesAsync'
  } else { 
  $operationName = $opIdValues[0]
  $operationType = $opIdValues[1]
@@ -1049,10 +1050,11 @@ function Set-ExtendedCodeMetadata {
  $operationsWithSuffix = $operations + 'Operations'
  }
 
- $methodName = $operationType + 'WithHttpMessagesAsync'
+ $methodNames += $operationType + 'WithHttpMessagesAsync'
+ # When OperationType value conflicts with a definition name, AutoREST generates method name by adding Method to the OperationType.
+ $methodNames += $operationType + 'Method' + 'WithHttpMessagesAsync'
  }
 
- $parameterSetDetail['MethodName'] = $methodName
  $parameterSetDetail['Operations'] = $operations
 
  # For some reason, moving this out of this loop causes issues
@@ -1119,13 +1121,14 @@ function Set-ExtendedCodeMetadata {
  $clientType = $propertyObject.PropertyType
  }
 
- $methodInfo = $clientType.GetMethods() | Where-Object { $_.Name -eq $MethodName } | Select-Object -First 1
+ $methodInfo = $clientType.GetMethods() | Where-Object {$MethodNames -contains $_.Name} | Select-Object -First 1
  if (-not $methodInfo) {
- $resultRecord.ErrorMessages += $LocalizedData.ExpectedMethodOnTypeNotFound -f ($MethodName, $clientType)
+ $resultRecord.ErrorMessages += $LocalizedData.ExpectedMethodOnTypeNotFound -f (($MethodNames -join ', or '), $clientType)
  Export-CliXml -InputObject $resultRecord -Path $CliXmlTmpPath
  $errorOccurred = $true
  return
  }
+ $parameterSetDetail['MethodName'] = $methodInfo.Name
 
  # Process output type
  $returnType = $methodInfo.ReturnType