fix: address missing attribute and relax brand checks

---
type: pre_commit_static_analysis_report
description: Results of running static analysis checks when committing changes.
report:
  - task: lint_filenames
    status: passed
  - task: lint_editorconfig
    status: passed
  - task: lint_markdown
    status: na
  - task: lint_package_json
    status: na
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    status: na
  - task: lint_javascript_src
    status: passed
  - task: lint_javascript_cli
    status: na
  - task: lint_javascript_examples
    status: na
  - task: lint_javascript_tests
    status: na
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    status: na
  - task: lint_c_src
    status: na
  - task: lint_c_examples
    status: na
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    status: na
  - task: lint_c_tests_fixtures
    status: na
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    status: na
  - task: lint_typescript_declarations
    status: na
  - task: lint_typescript_tests
    status: na
  - task: lint_license_headers
    status: passed
---

Author: kgryte

lib/node_modules/@stdlib/dstructs/struct/lib/is_struct.js

@@ -20,10 +20,8 @@
 
 // MODULES //
 
-var isPositiveInteger = require( '@stdlib/assert/is-positive-integer' ).isPrimitive;
 var isDataView = require( '@stdlib/assert/is-dataview' );
 var isObject = require( '@stdlib/assert/is-object' );
-var CTOR_NAME = require( './ctor_name.js' );
 var PRIVATE_BUFFER = require( './private_buffer.js' );
 
 
@@ -40,8 +38,6 @@ function isStruct( value ) {
 	// NOTE: the following is a relatively weak test, but we cannot use `instanceof` checks, etc, due to the factory nature of the implementation. Regardless, here, we are just trying to sniff out a `struct` type. If calling as a constructor later fails, we punt the responsibility off to the user to handle what should be an edge case. If, in the future, this check proves insufficient, we can add further "brand" checks...
 	return (
 		isObject( value ) &&
-		value.constructor.name === CTOR_NAME &&
-		isPositiveInteger( value.constructor.byteLength ) &&
 		isDataView( value[ PRIVATE_BUFFER ] )
 	);
 }

lib/node_modules/@stdlib/dstructs/struct/lib/main.js

@@ -413,7 +413,7 @@ function factory( fields ) {
 			throw new TypeError( format( 'invalid argument. First argument must be a `struct` instance. Value: `%s`.', obj ) );
 		}
 		buf = obj[ PRIVATE_BUFFER ];
-		return new DataView( buf, buf.byteOffset, buf.byteLength );
+		return new DataView( buf.buffer, buf.byteOffset, buf.byteLength );
 	});
 
 	// Create prototype accessors for getting and setting field values: