Rename TracerInstantProtocol to TracerInstant

**Motivation:**
We're aggresively removing the Protocol suffixes

**Result:**
cleaner API

Author: ktoso

Sources/Tracing/TracingTime.swift

@@ -21,12 +21,12 @@ import Darwin
 @_exported import Instrumentation
 @_exported import InstrumentationBaggage
 
-public protocol TracerInstantProtocol: Comparable, Hashable, Sendable {
+public protocol TracerInstant: Comparable, Hashable, Sendable {
     /// Representation of this instant as the number of nanoseconds since UNIX Epoch (January 1st 1970)
     var nanosecondsSinceEpoch: UInt64 { get }
 }
 
-extension TracerInstantProtocol {
+extension TracerInstant {
     /// Representation of this instant as the number of milliseconds since UNIX Epoch (January 1st 1970)
     @inlinable
     public var millisecondsSinceEpoch: UInt64 {
@@ -46,7 +46,7 @@ extension TracerInstantProtocol {
 /// especially when the system is already using some notion of simulated or mocked time, such that traces are
 /// expressed using the same notion of time.
 public protocol TracerClock {
-    associatedtype Instant: TracerInstantProtocol
+    associatedtype Instant: TracerInstant
 
     var now: Self.Instant { get }
 }
@@ -59,7 +59,7 @@ public struct DefaultTracerClock: TracerClock {
         // empty
     }
 
-    public struct Timestamp: TracerInstantProtocol {
+    public struct Timestamp: TracerInstant {
         public let nanosecondsSinceEpoch: UInt64
 
         public init(nanosecondsSinceEpoch: UInt64) {

Tests/TracingTests/DynamicTracepointTracerTests.swift

@@ -281,13 +281,13 @@ extension DynamicTracepointTestTracer {
             return span
         }
 
-        init<Instant: TracerInstantProtocol>(operationName: String,
-                                             startTime: Instant,
-                                             baggage: Baggage,
-                                             kind: SpanKind,
-                                             file fileID: String,
-                                             line: UInt,
-                                             onEnd: @escaping (TracepointSpan) -> Void)
+        init<Instant: TracerInstant>(operationName: String,
+                                     startTime: Instant,
+                                     baggage: Baggage,
+                                     kind: SpanKind,
+                                     file fileID: String,
+                                     line: UInt,
+                                     onEnd: @escaping (TracepointSpan) -> Void)
         {
             self.operationName = operationName
             self.startTimestampNanosSinceEpoch = startTime.nanosecondsSinceEpoch

Tests/TracingTests/TestTracer.swift

@@ -150,7 +150,7 @@ final class TestSpan: Span {
 
     let onEnd: (TestSpan) -> Void
 
-    init<Instant: TracerInstantProtocol>(
+    init<Instant: TracerInstant>(
         operationName: String,
         startTime: Instant,
         baggage: Baggage,

Tests/TracingTests/TracedLockTests.swift

@@ -124,7 +124,7 @@ private final class TracedLockPrintlnTracer: LegacyTracerProtocol {
 
         private(set) var isRecording = false
 
-        init<Instant: TracerInstantProtocol>(
+        init<Instant: TracerInstant>(
             operationName: String,
             startTime: Instant,
             kind: SpanKind,

Tests/TracingTests/TracerTimeTests.swift

@@ -61,7 +61,7 @@ final class MockClock: TracerClock {
         self._now = time
     }
 
-    struct Instant: TracerInstantProtocol {
+    struct Instant: TracerInstant {
         var nanosecondsSinceEpoch: UInt64
         static func < (lhs: MockClock.Instant, rhs: MockClock.Instant) -> Bool {
             lhs.nanosecondsSinceEpoch < rhs.nanosecondsSinceEpoch