Refactor: use global usings and modernize object creation

Removed redundant usings in favor of global usings in _Global.cs, streamlining imports across the codebase. Reformatted object instantiations to use concise new(...) syntax for consistency. Made minor formatting improvements for readability. No functional changes.

Author: electricessence

Analyzers/SplitAnalyzer.cs

@@ -140,8 +140,8 @@ private static void AnalyzeElementAccess(SyntaxNodeAnalysisContext context)
 		}
 
 		var argument = elementAccess.ArgumentList.Arguments[0];
-			if (argument.Expression is not LiteralExpressionSyntax literal
-				|| literal.Token.ValueText != "0")
+		if (argument.Expression is not LiteralExpressionSyntax literal
+			|| literal.Token.ValueText != "0")
 		{
 			return;
 		}

Benchmarks/StringConcatTests.cs

@@ -1,7 +1,6 @@
 using BenchmarkDotNet.Attributes;
 using Microsoft.Extensions.Primitives;
 using System.Text;
-using Open.Text;
 using ZLinq;
 
 namespace Open.Text.Benchmarks;

Source.ZLinq/Extensions.StringSegment.NoAlloc.cs

@@ -1,5 +1,3 @@
-using ZLinq;
-
 namespace Open.Text;
 
 /// <summary>
@@ -29,7 +27,7 @@ public static ValueEnumerable<StringSegmentSplitEnumerator, StringSegment> Split
 		char splitCharacter,
 		StringSplitOptions options = StringSplitOptions.None)
 		=> source.HasValue
-			? new (new StringSegmentSplitEnumerator(source, splitCharacter, options))
+			? new(new StringSegmentSplitEnumerator(source, splitCharacter, options))
 			: throw new ArgumentNullException(nameof(source), "Must be a StringSegment that has a value (is not null).");
 
 	/// <summary>
@@ -52,7 +50,7 @@ public static ValueEnumerable<RegexSplitSegmentEnumerator, StringSegment> SplitA
 		if (pattern is null) throw new ArgumentNullException(nameof(pattern));
 		Contract.EndContractBlock();
 
-		return new (new RegexSplitSegmentEnumerator(source, pattern, options));
+		return new(new RegexSplitSegmentEnumerator(source, pattern, options));
 	}
 
 	/// <summary>
@@ -99,7 +97,7 @@ public static ValueEnumerable<StringSegmentJoinEnumerator, StringSegment> JoinNo
 		this IEnumerable<StringSegment> source, StringSegment between)
 		=> source is null
 			? throw new ArgumentNullException(nameof(source))
-			: new (new StringSegmentJoinEnumerator(source, between));
+			: new(new StringSegmentJoinEnumerator(source, between));
 
 	/// <summary>
 	/// Joins a regex split sequence of segments with a separator sequence (zero-allocation).

Source.ZLinq/RegexExtensions.NoAlloc.cs

@@ -1,5 +1,3 @@
-using ZLinq;
-
 namespace Open.Text;
 
 /// <summary>

Source.ZLinq/_Global.cs

@@ -1,8 +1,7 @@
+global using Microsoft.Extensions.Primitives;
 global using System;
 global using System.Collections.Generic;
-global using System.Diagnostics;
 global using System.Diagnostics.CodeAnalysis;
 global using System.Diagnostics.Contracts;
 global using System.Text.RegularExpressions;
-global using Microsoft.Extensions.Primitives;
 global using ZLinq;